20212044979

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{681481}}^1$

素因数の和:681730

約数の個数: 16

約数和(自身を含む): 24424314880

約数和(自身を除く): 4212269901

約数列:

[1, 7, 19, 133, 223, 1561, 4237, 29659, 681481, 4770367, 12948139, 90636973, 151970263, 1063791841, 2887434997, 20212044979]

約数ペア:

[(1, 20212044979), (7, 2887434997), (19, 1063791841), (133, 151970263), (223, 90636973), (1561, 12948139), (4237, 4770367), (29659, 681481)]