408020139

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{463}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 612925440

約数和(自身を除く): 204905301

約数列:

[1, 3, 9, 27, 127, 257, 381, 463, 771, 1143, 1389, 2313, 3429, 4167, 6939, 12501, 32639, 58801, 97917, 118991, 176403, 293751, 356973, 529209, 881253, 1070919, 1587627, 3212757, 15111857, 45335571, 136006713, 408020139]

約数ペア:

[(1, 408020139), (3, 136006713), (9, 45335571), (27, 15111857), (127, 3212757), (257, 1587627), (381, 1070919), (463, 881253), (771, 529209), (1143, 356973), (1389, 293751), (2313, 176403), (3429, 118991), (4167, 97917), (6939, 58801), (12501, 32639)]