20987040670

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9411229}}^1$

素因数の和:9411459

約数の個数: 16

約数和(自身を含む): 37946079360

約数和(自身を除く): 16959038690

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 9411229, 18822458, 47056145, 94112290, 2098704067, 4197408134, 10493520335, 20987040670]

約数ペア:

[(1, 20987040670), (2, 10493520335), (5, 4197408134), (10, 2098704067), (223, 94112290), (446, 47056145), (1115, 18822458), (2230, 9411229)]