220173317

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{821}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 276813432

約数和(自身を除く): 56640115

約数列:

[1, 7, 13, 49, 91, 421, 637, 821, 2947, 5473, 5747, 10673, 20629, 38311, 40229, 74711, 268177, 345641, 522977, 2419487, 4493333, 16936409, 31453331, 220173317]

約数ペア:

[(1, 220173317), (7, 31453331), (13, 16936409), (49, 4493333), (91, 2419487), (421, 522977), (637, 345641), (821, 268177), (2947, 74711), (5473, 40229), (5747, 38311), (10673, 20629)]