2021521540

素因数分解:

$2^2\times 5^1\times {\mathrm{101076077}}^1$

素因数の和:101076086

約数の個数: 12

約数和(自身を含む): 4245195276

約数和(自身を除く): 2223673736

約数列:

[1, 2, 4, 5, 10, 20, 101076077, 202152154, 404304308, 505380385, 1010760770, 2021521540]

約数ペア:

[(1, 2021521540), (2, 1010760770), (4, 505380385), (5, 404304308), (10, 202152154), (20, 101076077)]