21710052

素因数分解:

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

素因数の和:127

約数の個数: 144

約数和(自身を含む): 70779520

約数和(自身を除く): 49069468

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 47, 52, 54, 63, 78, 84, 91, 94, 108, 117, 126, 141, 156, 182, 188, 189, 234, 252, 273, 282, 329, 351, 364, 378, 423, 468, 546, 564, 611, 658, 702, 756, 819, 846, 987, 1092, 1222, 1269, 1316, 1404, 1638, 1692, 1833, 1974, 2209, 2444, 2457, 2538, 2961, 3276, 3666, 3948, 4277, 4418, 4914, 5076, 5499, 5922, 6627, 7332, 8554, 8836, 8883, 9828, 10998, 11844, 12831, 13254, 15463, 16497, 17108, 17766, 19881, 21996, 25662, 26508, 28717, 30926, 32994, 35532, 38493, 39762, 46389, 51324, 57434, 59643, 61852, 65988, 76986, 79524, 86151, 92778, 114868, 115479, 119286, 139167, 153972, 172302, 185556, 201019, 230958, 238572, 258453, 278334, 344604, 402038, 417501, 461916, 516906, 556668, 603057, 775359, 804076, 835002, 1033812, 1206114, 1550718, 1670004, 1809171, 2412228, 3101436, 3618342, 5427513, 7236684, 10855026, 21710052]

約数ペア:

[(1, 21710052), (2, 10855026), (3, 7236684), (4, 5427513), (6, 3618342), (7, 3101436), (9, 2412228), (12, 1809171), (13, 1670004), (14, 1550718), (18, 1206114), (21, 1033812), (26, 835002), (27, 804076), (28, 775359), (36, 603057), (39, 556668), (42, 516906), (47, 461916), (52, 417501), (54, 402038), (63, 344604), (78, 278334), (84, 258453), (91, 238572), (94, 230958), (108, 201019), (117, 185556), (126, 172302), (141, 153972), (156, 139167), (182, 119286), (188, 115479), (189, 114868), (234, 92778), (252, 86151), (273, 79524), (282, 76986), (329, 65988), (351, 61852), (364, 59643), (378, 57434), (423, 51324), (468, 46389), (546, 39762), (564, 38493), (611, 35532), (658, 32994), (702, 30926), (756, 28717), (819, 26508), (846, 25662), (987, 21996), (1092, 19881), (1222, 17766), (1269, 17108), (1316, 16497), (1404, 15463), (1638, 13254), (1692, 12831), (1833, 11844), (1974, 10998), (2209, 9828), (2444, 8883), (2457, 8836), (2538, 8554), (2961, 7332), (3276, 6627), (3666, 5922), (3948, 5499), (4277, 5076), (4418, 4914)]