21269664

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:84

約数の個数: 216

約数和(自身を含む): 71940960

約数和(自身を除く): 50671296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 23, 24, 26, 32, 36, 38, 39, 46, 48, 52, 57, 69, 72, 76, 78, 92, 96, 104, 114, 117, 138, 144, 152, 156, 169, 171, 184, 207, 208, 228, 234, 247, 276, 288, 299, 304, 312, 338, 342, 368, 414, 416, 437, 456, 468, 494, 507, 552, 598, 608, 624, 676, 684, 736, 741, 828, 874, 897, 912, 936, 988, 1014, 1104, 1196, 1248, 1311, 1352, 1368, 1482, 1521, 1656, 1748, 1794, 1824, 1872, 1976, 2028, 2208, 2223, 2392, 2622, 2691, 2704, 2736, 2964, 3042, 3211, 3312, 3496, 3588, 3744, 3887, 3933, 3952, 4056, 4446, 4784, 5244, 5382, 5408, 5472, 5681, 5928, 6084, 6422, 6624, 6992, 7176, 7774, 7866, 7904, 8112, 8892, 9568, 9633, 10488, 10764, 11362, 11661, 11856, 12168, 12844, 13984, 14352, 15548, 15732, 16224, 17043, 17784, 19266, 20976, 21528, 22724, 23322, 23712, 24336, 25688, 28704, 28899, 31096, 31464, 34086, 34983, 35568, 38532, 41952, 43056, 45448, 46644, 48672, 51129, 51376, 57798, 62192, 62928, 68172, 69966, 71136, 73853, 77064, 86112, 90896, 93288, 102258, 102752, 115596, 124384, 125856, 136344, 139932, 147706, 154128, 181792, 186576, 204516, 221559, 231192, 272688, 279864, 295412, 308256, 373152, 409032, 443118, 462384, 545376, 559728, 590824, 664677, 818064, 886236, 924768, 1119456, 1181648, 1329354, 1636128, 1772472, 2363296, 2658708, 3544944, 5317416, 7089888, 10634832, 21269664]

約数ペア:

[(1, 21269664), (2, 10634832), (3, 7089888), (4, 5317416), (6, 3544944), (8, 2658708), (9, 2363296), (12, 1772472), (13, 1636128), (16, 1329354), (18, 1181648), (19, 1119456), (23, 924768), (24, 886236), (26, 818064), (32, 664677), (36, 590824), (38, 559728), (39, 545376), (46, 462384), (48, 443118), (52, 409032), (57, 373152), (69, 308256), (72, 295412), (76, 279864), (78, 272688), (92, 231192), (96, 221559), (104, 204516), (114, 186576), (117, 181792), (138, 154128), (144, 147706), (152, 139932), (156, 136344), (169, 125856), (171, 124384), (184, 115596), (207, 102752), (208, 102258), (228, 93288), (234, 90896), (247, 86112), (276, 77064), (288, 73853), (299, 71136), (304, 69966), (312, 68172), (338, 62928), (342, 62192), (368, 57798), (414, 51376), (416, 51129), (437, 48672), (456, 46644), (468, 45448), (494, 43056), (507, 41952), (552, 38532), (598, 35568), (608, 34983), (624, 34086), (676, 31464), (684, 31096), (736, 28899), (741, 28704), (828, 25688), (874, 24336), (897, 23712), (912, 23322), (936, 22724), (988, 21528), (1014, 20976), (1104, 19266), (1196, 17784), (1248, 17043), (1311, 16224), (1352, 15732), (1368, 15548), (1482, 14352), (1521, 13984), (1656, 12844), (1748, 12168), (1794, 11856), (1824, 11661), (1872, 11362), (1976, 10764), (2028, 10488), (2208, 9633), (2223, 9568), (2392, 8892), (2622, 8112), (2691, 7904), (2704, 7866), (2736, 7774), (2964, 7176), (3042, 6992), (3211, 6624), (3312, 6422), (3496, 6084), (3588, 5928), (3744, 5681), (3887, 5472), (3933, 5408), (3952, 5382), (4056, 5244), (4446, 4784)]