257311998

素因数分解:

$2^1\times 3^3\times {\mathrm{257}}^1\times {\mathrm{18541}}^1$

素因数の和:18809

約数の個数: 32

約数和(自身を含む): 574060320

約数和(自身を除く): 316748322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 257, 514, 771, 1542, 2313, 4626, 6939, 13878, 18541, 37082, 55623, 111246, 166869, 333738, 500607, 1001214, 4765037, 9530074, 14295111, 28590222, 42885333, 85770666, 128655999, 257311998]

約数ペア:

[(1, 257311998), (2, 128655999), (3, 85770666), (6, 42885333), (9, 28590222), (18, 14295111), (27, 9530074), (54, 4765037), (257, 1001214), (514, 500607), (771, 333738), (1542, 166869), (2313, 111246), (4626, 55623), (6939, 37082), (13878, 18541)]