31215807

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 25554753

約数列:

[1, 3, 7, 9, 21, 23, 27, 43, 63, 69, 129, 161, 167, 189, 207, 301, 387, 483, 501, 621, 903, 989, 1161, 1169, 1449, 1503, 2709, 2967, 3507, 3841, 4347, 4509, 6923, 7181, 8127, 8901, 10521, 11523, 20769, 21543, 26703, 26887, 31563, 34569, 50267, 62307, 64629, 80661, 103707, 150801, 165163, 186921, 193887, 241983, 452403, 495489, 725949, 1156141, 1357209, 1486467, 3468423, 4459401, 10405269, 31215807]

約数ペア:

[(1, 31215807), (3, 10405269), (7, 4459401), (9, 3468423), (21, 1486467), (23, 1357209), (27, 1156141), (43, 725949), (63, 495489), (69, 452403), (129, 241983), (161, 193887), (167, 186921), (189, 165163), (207, 150801), (301, 103707), (387, 80661), (483, 64629), (501, 62307), (621, 50267), (903, 34569), (989, 31563), (1161, 26887), (1169, 26703), (1449, 21543), (1503, 20769), (2709, 11523), (2967, 10521), (3507, 8901), (3841, 8127), (4347, 7181), (4509, 6923)]