20851919426

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{3181}}^1$

素因数の和:3387

約数の個数: 64

約数和(自身を含む): 35333335296

約数和(自身を除く): 14481415870

約数列:

[1, 2, 13, 26, 53, 67, 71, 106, 134, 142, 689, 871, 923, 1378, 1742, 1846, 3181, 3551, 3763, 4757, 6362, 7102, 7526, 9514, 41353, 46163, 48919, 61841, 82706, 92326, 97838, 123682, 168593, 213127, 225851, 252121, 337186, 426254, 451702, 504242, 2191709, 2770651, 2936063, 3277573, 4383418, 5541302, 5872126, 6555146, 11295731, 11970103, 15132017, 22591462, 23940206, 30264034, 146844503, 155611339, 196716221, 293689006, 311222678, 393432442, 801996901, 1603993802, 10425959713, 20851919426]

約数ペア:

[(1, 20851919426), (2, 10425959713), (13, 1603993802), (26, 801996901), (53, 393432442), (67, 311222678), (71, 293689006), (106, 196716221), (134, 155611339), (142, 146844503), (689, 30264034), (871, 23940206), (923, 22591462), (1378, 15132017), (1742, 11970103), (1846, 11295731), (3181, 6555146), (3551, 5872126), (3763, 5541302), (4757, 4383418), (6362, 3277573), (7102, 2936063), (7526, 2770651), (9514, 2191709), (41353, 504242), (46163, 451702), (48919, 426254), (61841, 337186), (82706, 252121), (92326, 225851), (97838, 213127), (123682, 168593)]