217419839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{7537}}^1$

素因数の和:7874

約数の個数: 16

約数和(自身を含む): 268473408

約数和(自身を除く): 51053569

約数列:

[1, 7, 13, 91, 317, 2219, 4121, 7537, 28847, 52759, 97981, 685867, 2389229, 16724603, 31059977, 217419839]

約数ペア:

[(1, 217419839), (7, 31059977), (13, 16724603), (91, 2389229), (317, 685867), (2219, 97981), (4121, 52759), (7537, 28847)]