639896881

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{70621}}^1$

素因数の和:70692

約数の個数: 16

約数和(自身を含む): 747463248

約数和(自身を除く): 107566367

約数列:

[1, 13, 17, 41, 221, 533, 697, 9061, 70621, 918073, 1200557, 2895461, 15607241, 37640993, 49222837, 639896881]

約数ペア:

[(1, 639896881), (13, 49222837), (17, 37640993), (41, 15607241), (221, 2895461), (533, 1200557), (697, 918073), (9061, 70621)]