21122519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{103}}^2\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 12

約数和(自身を含む): 23397192

約数和(自身を除く): 2274673

約数列:

[1, 11, 103, 181, 1133, 1991, 10609, 18643, 116699, 205073, 1920229, 21122519]

約数ペア:

[(1, 21122519), (11, 1920229), (103, 205073), (181, 116699), (1133, 18643), (1991, 10609)]