21140438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5309}}^1$

素因数の和:5503

約数の個数: 16

約数和(自身を含む): 34791120

約数和(自身を除く): 13650682

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 5309, 10618, 58399, 116798, 960929, 1921858, 10570219, 21140438]

約数ペア:

[(1, 21140438), (2, 10570219), (11, 1921858), (22, 960929), (181, 116798), (362, 58399), (1991, 10618), (3982, 5309)]