21248136

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 256

約数和(自身を含む): 77414400

約数和(自身を除く): 56166264

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 23, 24, 26, 27, 28, 36, 39, 42, 46, 47, 52, 54, 56, 63, 69, 72, 78, 84, 91, 92, 94, 104, 108, 117, 126, 138, 141, 156, 161, 168, 182, 184, 188, 189, 207, 216, 234, 252, 273, 276, 282, 299, 312, 322, 329, 351, 364, 376, 378, 414, 423, 468, 483, 504, 546, 552, 564, 598, 611, 621, 644, 658, 702, 728, 756, 819, 828, 846, 897, 936, 966, 987, 1081, 1092, 1128, 1196, 1222, 1242, 1269, 1288, 1316, 1404, 1449, 1512, 1638, 1656, 1692, 1794, 1833, 1932, 1974, 2093, 2162, 2184, 2392, 2444, 2457, 2484, 2538, 2632, 2691, 2808, 2898, 2961, 3243, 3276, 3384, 3588, 3666, 3864, 3948, 4186, 4277, 4324, 4347, 4888, 4914, 4968, 5076, 5382, 5499, 5796, 5922, 6279, 6486, 6552, 7176, 7332, 7567, 7896, 8073, 8372, 8554, 8648, 8694, 8883, 9729, 9828, 10152, 10764, 10998, 11592, 11844, 12558, 12831, 12972, 14053, 14664, 15134, 16146, 16497, 16744, 17108, 17388, 17766, 18837, 19458, 19656, 21528, 21996, 22701, 23688, 25116, 25662, 25944, 28106, 29187, 30268, 32292, 32994, 34216, 34776, 35532, 37674, 38493, 38916, 42159, 43992, 45402, 50232, 51324, 56212, 56511, 58374, 60536, 64584, 65988, 68103, 71064, 75348, 76986, 77832, 84318, 90804, 98371, 102648, 112424, 113022, 115479, 116748, 126477, 131976, 136206, 150696, 153972, 168636, 181608, 196742, 204309, 226044, 230958, 233496, 252954, 272412, 295113, 307944, 337272, 379431, 393484, 408618, 452088, 461916, 505908, 544824, 590226, 758862, 786968, 817236, 885339, 923832, 1011816, 1180452, 1517724, 1634472, 1770678, 2360904, 2656017, 3035448, 3541356, 5312034, 7082712, 10624068, 21248136]

約数ペア:

[(1, 21248136), (2, 10624068), (3, 7082712), (4, 5312034), (6, 3541356), (7, 3035448), (8, 2656017), (9, 2360904), (12, 1770678), (13, 1634472), (14, 1517724), (18, 1180452), (21, 1011816), (23, 923832), (24, 885339), (26, 817236), (27, 786968), (28, 758862), (36, 590226), (39, 544824), (42, 505908), (46, 461916), (47, 452088), (52, 408618), (54, 393484), (56, 379431), (63, 337272), (69, 307944), (72, 295113), (78, 272412), (84, 252954), (91, 233496), (92, 230958), (94, 226044), (104, 204309), (108, 196742), (117, 181608), (126, 168636), (138, 153972), (141, 150696), (156, 136206), (161, 131976), (168, 126477), (182, 116748), (184, 115479), (188, 113022), (189, 112424), (207, 102648), (216, 98371), (234, 90804), (252, 84318), (273, 77832), (276, 76986), (282, 75348), (299, 71064), (312, 68103), (322, 65988), (329, 64584), (351, 60536), (364, 58374), (376, 56511), (378, 56212), (414, 51324), (423, 50232), (468, 45402), (483, 43992), (504, 42159), (546, 38916), (552, 38493), (564, 37674), (598, 35532), (611, 34776), (621, 34216), (644, 32994), (658, 32292), (702, 30268), (728, 29187), (756, 28106), (819, 25944), (828, 25662), (846, 25116), (897, 23688), (936, 22701), (966, 21996), (987, 21528), (1081, 19656), (1092, 19458), (1128, 18837), (1196, 17766), (1222, 17388), (1242, 17108), (1269, 16744), (1288, 16497), (1316, 16146), (1404, 15134), (1449, 14664), (1512, 14053), (1638, 12972), (1656, 12831), (1692, 12558), (1794, 11844), (1833, 11592), (1932, 10998), (1974, 10764), (2093, 10152), (2162, 9828), (2184, 9729), (2392, 8883), (2444, 8694), (2457, 8648), (2484, 8554), (2538, 8372), (2632, 8073), (2691, 7896), (2808, 7567), (2898, 7332), (2961, 7176), (3243, 6552), (3276, 6486), (3384, 6279), (3588, 5922), (3666, 5796), (3864, 5499), (3948, 5382), (4186, 5076), (4277, 4968), (4324, 4914), (4347, 4888)]