21000480696

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{521777}}^1$

素因数の和:521845

約数の個数: 96

約数和(自身を含む): 62675973360

約数和(自身を除く): 41675492664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 43, 52, 72, 78, 86, 104, 117, 129, 156, 172, 234, 258, 312, 344, 387, 468, 516, 559, 774, 936, 1032, 1118, 1548, 1677, 2236, 3096, 3354, 4472, 5031, 6708, 10062, 13416, 20124, 40248, 521777, 1043554, 1565331, 2087108, 3130662, 4174216, 4695993, 6261324, 6783101, 9391986, 12522648, 13566202, 18783972, 20349303, 22436411, 27132404, 37567944, 40698606, 44872822, 54264808, 61047909, 67309233, 81397212, 89745644, 122095818, 134618466, 162794424, 179491288, 201927699, 244191636, 269236932, 291673343, 403855398, 488383272, 538473864, 583346686, 807710796, 875020029, 1166693372, 1615421592, 1750040058, 2333386744, 2625060087, 3500080116, 5250120174, 7000160232, 10500240348, 21000480696]

約数ペア:

[(1, 21000480696), (2, 10500240348), (3, 7000160232), (4, 5250120174), (6, 3500080116), (8, 2625060087), (9, 2333386744), (12, 1750040058), (13, 1615421592), (18, 1166693372), (24, 875020029), (26, 807710796), (36, 583346686), (39, 538473864), (43, 488383272), (52, 403855398), (72, 291673343), (78, 269236932), (86, 244191636), (104, 201927699), (117, 179491288), (129, 162794424), (156, 134618466), (172, 122095818), (234, 89745644), (258, 81397212), (312, 67309233), (344, 61047909), (387, 54264808), (468, 44872822), (516, 40698606), (559, 37567944), (774, 27132404), (936, 22436411), (1032, 20349303), (1118, 18783972), (1548, 13566202), (1677, 12522648), (2236, 9391986), (3096, 6783101), (3354, 6261324), (4472, 4695993), (5031, 4174216), (6708, 3130662), (10062, 2087108), (13416, 1565331), (20124, 1043554), (40248, 521777)]