643331

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 16

約数和(自身を含む): 762048

約数和(自身を除く): 118717

約数列:

[1, 13, 17, 41, 71, 221, 533, 697, 923, 1207, 2911, 9061, 15691, 37843, 49487, 643331]

約数ペア:

[(1, 643331), (13, 49487), (17, 37843), (41, 15691), (71, 9061), (221, 2911), (533, 1207), (697, 923)]