19557790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{279397}}^1$

素因数の和:279411

約数の個数: 16

約数和(自身を含む): 40233312

約数和(自身を除く): 20675522

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 279397, 558794, 1396985, 1955779, 2793970, 3911558, 9778895, 19557790]

約数ペア:

[(1, 19557790), (2, 9778895), (5, 3911558), (7, 2793970), (10, 1955779), (14, 1396985), (35, 558794), (70, 279397)]