18570643

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 24514560

約数和(自身を除く): 5943917

約数列:

[1, 7, 13, 29, 31, 91, 203, 217, 227, 377, 403, 899, 1589, 2639, 2821, 2951, 6293, 6583, 7037, 11687, 20657, 46081, 49259, 81809, 85579, 91481, 204073, 599053, 640367, 1428511, 2652949, 18570643]

約数ペア:

[(1, 18570643), (7, 2652949), (13, 1428511), (29, 640367), (31, 599053), (91, 204073), (203, 91481), (217, 85579), (227, 81809), (377, 49259), (403, 46081), (899, 20657), (1589, 11687), (2639, 7037), (2821, 6583), (2951, 6293)]