18808504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 42547680

約数和(自身を除く): 23739176

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 41, 44, 52, 82, 88, 104, 143, 164, 286, 328, 401, 451, 533, 572, 802, 902, 1066, 1144, 1604, 1804, 2132, 3208, 3608, 4264, 4411, 5213, 5863, 8822, 10426, 11726, 16441, 17644, 20852, 23452, 32882, 35288, 41704, 46904, 57343, 65764, 114686, 131528, 180851, 213733, 229372, 361702, 427466, 458744, 723404, 854932, 1446808, 1709864, 2351063, 4702126, 9404252, 18808504]

約数ペア:

[(1, 18808504), (2, 9404252), (4, 4702126), (8, 2351063), (11, 1709864), (13, 1446808), (22, 854932), (26, 723404), (41, 458744), (44, 427466), (52, 361702), (82, 229372), (88, 213733), (104, 180851), (143, 131528), (164, 114686), (286, 65764), (328, 57343), (401, 46904), (451, 41704), (533, 35288), (572, 32882), (802, 23452), (902, 20852), (1066, 17644), (1144, 16441), (1604, 11726), (1804, 10426), (2132, 8822), (3208, 5863), (3608, 5213), (4264, 4411)]