21544220

素因数分解:

$2^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1423}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 45334464

約数和(自身を除く): 23790244

約数列:

[1, 2, 4, 5, 10, 20, 757, 1423, 1514, 2846, 3028, 3785, 5692, 7115, 7570, 14230, 15140, 28460, 1077211, 2154422, 4308844, 5386055, 10772110, 21544220]

約数ペア:

[(1, 21544220), (2, 10772110), (4, 5386055), (5, 4308844), (10, 2154422), (20, 1077211), (757, 28460), (1423, 15140), (1514, 14230), (2846, 7570), (3028, 7115), (3785, 5692)]