20892890

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3659}}^1$

素因数の和:4237

約数の個数: 16

約数和(自身を含む): 37683360

約数和(自身を除く): 16790470

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 3659, 5710, 7318, 18295, 36590, 2089289, 4178578, 10446445, 20892890]

約数ペア:

[(1, 20892890), (2, 10446445), (5, 4178578), (10, 2089289), (571, 36590), (1142, 18295), (2855, 7318), (3659, 5710)]