21813012

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:517

約数の個数: 72

約数和(自身を含む): 60010496

約数和(自身を除く): 38197484

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 127, 156, 234, 254, 367, 381, 468, 508, 734, 762, 1101, 1143, 1468, 1524, 1651, 2202, 2286, 3302, 3303, 4404, 4572, 4771, 4953, 6604, 6606, 9542, 9906, 13212, 14313, 14859, 19084, 19812, 28626, 29718, 42939, 46609, 57252, 59436, 85878, 93218, 139827, 171756, 186436, 279654, 419481, 559308, 605917, 838962, 1211834, 1677924, 1817751, 2423668, 3635502, 5453253, 7271004, 10906506, 21813012]

約数ペア:

[(1, 21813012), (2, 10906506), (3, 7271004), (4, 5453253), (6, 3635502), (9, 2423668), (12, 1817751), (13, 1677924), (18, 1211834), (26, 838962), (36, 605917), (39, 559308), (52, 419481), (78, 279654), (117, 186436), (127, 171756), (156, 139827), (234, 93218), (254, 85878), (367, 59436), (381, 57252), (468, 46609), (508, 42939), (734, 29718), (762, 28626), (1101, 19812), (1143, 19084), (1468, 14859), (1524, 14313), (1651, 13212), (2202, 9906), (2286, 9542), (3302, 6606), (3303, 6604), (4404, 4953), (4572, 4771)]