321631791

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1031}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 487764480

約数和(自身を除く): 166132689

約数列:

[1, 3, 13, 19, 39, 57, 247, 421, 741, 1031, 1263, 3093, 5473, 7999, 13403, 16419, 19589, 23997, 40209, 58767, 103987, 254657, 311961, 434051, 763971, 1302153, 5642663, 8246969, 16927989, 24740907, 107210597, 321631791]

約数ペア:

[(1, 321631791), (3, 107210597), (13, 24740907), (19, 16927989), (39, 8246969), (57, 5642663), (247, 1302153), (421, 763971), (741, 434051), (1031, 311961), (1263, 254657), (3093, 103987), (5473, 58767), (7999, 40209), (13403, 23997), (16419, 19589)]