18572619

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 28607040

約数和(自身を除く): 10034421

約数列:

[1, 3, 13, 17, 39, 51, 109, 221, 257, 327, 663, 771, 1417, 1853, 3341, 4251, 4369, 5559, 10023, 13107, 24089, 28013, 56797, 72267, 84039, 170391, 364169, 476221, 1092507, 1428663, 6190873, 18572619]

約数ペア:

[(1, 18572619), (3, 6190873), (13, 1428663), (17, 1092507), (39, 476221), (51, 364169), (109, 170391), (221, 84039), (257, 72267), (327, 56797), (663, 28013), (771, 24089), (1417, 13107), (1853, 10023), (3341, 5559), (4251, 4369)]