21763560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2027

約数の個数: 128

約数和(自身を含む): 80398080

約数和(自身を除く): 58634520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 1993, 2184, 2730, 3640, 3986, 5460, 5979, 7972, 9965, 10920, 11958, 13951, 15944, 19930, 23916, 25909, 27902, 29895, 39860, 41853, 47832, 51818, 55804, 59790, 69755, 77727, 79720, 83706, 103636, 111608, 119580, 129545, 139510, 155454, 167412, 181363, 207272, 209265, 239160, 259090, 279020, 310908, 334824, 362726, 388635, 418530, 518180, 544089, 558040, 621816, 725452, 777270, 837060, 906815, 1036360, 1088178, 1450904, 1554540, 1674120, 1813630, 2176356, 2720445, 3109080, 3627260, 4352712, 5440890, 7254520, 10881780, 21763560]

約数ペア:

[(1, 21763560), (2, 10881780), (3, 7254520), (4, 5440890), (5, 4352712), (6, 3627260), (7, 3109080), (8, 2720445), (10, 2176356), (12, 1813630), (13, 1674120), (14, 1554540), (15, 1450904), (20, 1088178), (21, 1036360), (24, 906815), (26, 837060), (28, 777270), (30, 725452), (35, 621816), (39, 558040), (40, 544089), (42, 518180), (52, 418530), (56, 388635), (60, 362726), (65, 334824), (70, 310908), (78, 279020), (84, 259090), (91, 239160), (104, 209265), (105, 207272), (120, 181363), (130, 167412), (140, 155454), (156, 139510), (168, 129545), (182, 119580), (195, 111608), (210, 103636), (260, 83706), (273, 79720), (280, 77727), (312, 69755), (364, 59790), (390, 55804), (420, 51818), (455, 47832), (520, 41853), (546, 39860), (728, 29895), (780, 27902), (840, 25909), (910, 23916), (1092, 19930), (1365, 15944), (1560, 13951), (1820, 11958), (1993, 10920), (2184, 9965), (2730, 7972), (3640, 5979), (3986, 5460)]