20630519

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 26142480

約数和(自身を除く): 5511961

約数列:

[1, 7, 13, 49, 91, 139, 233, 637, 973, 1631, 1807, 3029, 6811, 11417, 12649, 21203, 32387, 88543, 148421, 226709, 421031, 1586963, 2947217, 20630519]

約数ペア:

[(1, 20630519), (7, 2947217), (13, 1586963), (49, 421031), (91, 226709), (139, 148421), (233, 88543), (637, 32387), (973, 21203), (1631, 12649), (1807, 11417), (3029, 6811)]