8313487

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 10776192

約数和(自身を除く): 2462705

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 421, 637, 1519, 2821, 2947, 5473, 13051, 19747, 20629, 38311, 91357, 169663, 268177, 639499, 1187641, 8313487]

約数ペア:

[(1, 8313487), (7, 1187641), (13, 639499), (31, 268177), (49, 169663), (91, 91357), (217, 38311), (403, 20629), (421, 19747), (637, 13051), (1519, 5473), (2821, 2947)]