31936359

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 24834201

約数列:

[1, 3, 7, 13, 19, 21, 39, 47, 57, 91, 131, 133, 141, 247, 273, 329, 393, 399, 611, 741, 893, 917, 987, 1703, 1729, 1833, 2489, 2679, 2751, 4277, 5109, 5187, 6157, 6251, 7467, 11609, 11921, 12831, 17423, 18471, 18753, 32357, 34827, 35763, 43099, 52269, 80041, 81263, 97071, 116983, 129297, 226499, 240123, 243789, 350949, 560287, 679497, 818881, 1520779, 1680861, 2456643, 4562337, 10645453, 31936359]

約数ペア:

[(1, 31936359), (3, 10645453), (7, 4562337), (13, 2456643), (19, 1680861), (21, 1520779), (39, 818881), (47, 679497), (57, 560287), (91, 350949), (131, 243789), (133, 240123), (141, 226499), (247, 129297), (273, 116983), (329, 97071), (393, 81263), (399, 80041), (611, 52269), (741, 43099), (893, 35763), (917, 34827), (987, 32357), (1703, 18753), (1729, 18471), (1833, 17423), (2489, 12831), (2679, 11921), (2751, 11609), (4277, 7467), (5109, 6251), (5187, 6157)]