217842910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{306821}}^1$

素因数の和:306899

約数の個数: 16

約数和(自身を含む): 397641312

約数和(自身を除く): 179798402

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 306821, 613642, 1534105, 3068210, 21784291, 43568582, 108921455, 217842910]

約数ペア:

[(1, 217842910), (2, 108921455), (5, 43568582), (10, 21784291), (71, 3068210), (142, 1534105), (355, 613642), (710, 306821)]