31307991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 22882089

約数列:

[1, 3, 11, 13, 19, 23, 33, 39, 57, 69, 143, 167, 209, 247, 253, 299, 429, 437, 501, 627, 741, 759, 897, 1311, 1837, 2171, 2717, 3173, 3289, 3841, 4807, 5511, 5681, 6513, 8151, 9519, 9867, 11523, 14421, 17043, 23881, 34903, 41249, 42251, 49933, 62491, 71643, 72979, 104709, 123747, 126753, 149799, 187473, 218937, 453739, 549263, 802769, 948727, 1361217, 1647789, 2408307, 2846181, 10435997, 31307991]

約数ペア:

[(1, 31307991), (3, 10435997), (11, 2846181), (13, 2408307), (19, 1647789), (23, 1361217), (33, 948727), (39, 802769), (57, 549263), (69, 453739), (143, 218937), (167, 187473), (209, 149799), (247, 126753), (253, 123747), (299, 104709), (429, 72979), (437, 71643), (501, 62491), (627, 49933), (741, 42251), (759, 41249), (897, 34903), (1311, 23881), (1837, 17043), (2171, 14421), (2717, 11523), (3173, 9867), (3289, 9519), (3841, 8151), (4807, 6513), (5511, 5681)]