16978990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{34651}}^1$

素因数の和:34672

約数の個数: 24

約数和(自身を含む): 35552952

約数和(自身を除く): 18573962

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 34651, 69302, 173255, 242557, 346510, 485114, 1212785, 1697899, 2425570, 3395798, 8489495, 16978990]

約数ペア:

[(1, 16978990), (2, 8489495), (5, 3395798), (7, 2425570), (10, 1697899), (14, 1212785), (35, 485114), (49, 346510), (70, 242557), (98, 173255), (245, 69302), (490, 34651)]