20146984

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 44743860

約数和(自身を除く): 24596876

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 242, 286, 484, 572, 968, 1144, 1573, 1601, 3146, 3202, 6292, 6404, 12584, 12808, 17611, 20813, 35222, 41626, 70444, 83252, 140888, 166504, 193721, 228943, 387442, 457886, 774884, 915772, 1549768, 1831544, 2518373, 5036746, 10073492, 20146984]

約数ペア:

[(1, 20146984), (2, 10073492), (4, 5036746), (8, 2518373), (11, 1831544), (13, 1549768), (22, 915772), (26, 774884), (44, 457886), (52, 387442), (88, 228943), (104, 193721), (121, 166504), (143, 140888), (242, 83252), (286, 70444), (484, 41626), (572, 35222), (968, 20813), (1144, 17611), (1573, 12808), (1601, 12584), (3146, 6404), (3202, 6292)]