21787467

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{6277}}^1$

素因数の和:6382

約数の個数: 16

約数和(自身を含む): 31641120

約数和(自身を除く): 9853653

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 6277, 18831, 81601, 244803, 558653, 1675959, 7262489, 21787467]

約数ペア:

[(1, 21787467), (3, 7262489), (13, 1675959), (39, 558653), (89, 244803), (267, 81601), (1157, 18831), (3471, 6277)]