21827480

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2857}}^1$

素因数の和:3059

約数の個数: 32

約数和(自身を含む): 49386240

約数和(自身を除く): 27558760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2857, 3820, 5714, 7640, 11428, 14285, 22856, 28570, 57140, 114280, 545687, 1091374, 2182748, 2728435, 4365496, 5456870, 10913740, 21827480]

約数ペア:

[(1, 21827480), (2, 10913740), (4, 5456870), (5, 4365496), (8, 2728435), (10, 2182748), (20, 1091374), (40, 545687), (191, 114280), (382, 57140), (764, 28570), (955, 22856), (1528, 14285), (1910, 11428), (2857, 7640), (3820, 5714)]