258978837

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1087}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 383846400

約数和(自身を除く): 124867563

約数列:

[1, 3, 13, 39, 41, 123, 149, 447, 533, 1087, 1599, 1937, 3261, 5811, 6109, 14131, 18327, 42393, 44567, 79417, 133701, 161963, 238251, 485889, 579371, 1738113, 2105519, 6316557, 6640483, 19921449, 86326279, 258978837]

約数ペア:

[(1, 258978837), (3, 86326279), (13, 19921449), (39, 6640483), (41, 6316557), (123, 2105519), (149, 1738113), (447, 579371), (533, 485889), (1087, 238251), (1599, 161963), (1937, 133701), (3261, 79417), (5811, 44567), (6109, 42393), (14131, 18327)]