20218687204

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{117550507}}^1$

素因数の和:117550554

約数の個数: 12

約数和(自身を含む): 36205556464

約数和(自身を除く): 15986869260

約数列:

[1, 2, 4, 43, 86, 172, 117550507, 235101014, 470202028, 5054671801, 10109343602, 20218687204]

約数ペア:

[(1, 20218687204), (2, 10109343602), (4, 5054671801), (43, 470202028), (86, 235101014), (172, 117550507)]