217421860

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{101599}}^1$

素因数の和:101715

約数の個数: 24

約数和(自身を含む): 460857600

約数和(自身を除く): 243435740

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 101599, 203198, 406396, 507995, 1015990, 2031980, 10871093, 21742186, 43484372, 54355465, 108710930, 217421860]

約数ペア:

[(1, 217421860), (2, 108710930), (4, 54355465), (5, 43484372), (10, 21742186), (20, 10871093), (107, 2031980), (214, 1015990), (428, 507995), (535, 406396), (1070, 203198), (2140, 101599)]