21617380

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5659}}^1$

素因数の和:5859

約数の個数: 24

約数和(自身を含む): 45642240

約数和(自身を除く): 24024860

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5659, 11318, 22636, 28295, 56590, 113180, 1080869, 2161738, 4323476, 5404345, 10808690, 21617380]

約数ペア:

[(1, 21617380), (2, 10808690), (4, 5404345), (5, 4323476), (10, 2161738), (20, 1080869), (191, 113180), (382, 56590), (764, 28295), (955, 22636), (1910, 11318), (3820, 5659)]