20656895

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31063}}^1$

素因数の和:31094

約数の個数: 16

約数和(自身を含む): 29821440

約数和(自身を除く): 9164545

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31063, 155315, 217441, 590197, 1087205, 2950985, 4131379, 20656895]

約数ペア:

[(1, 20656895), (5, 4131379), (7, 2950985), (19, 1087205), (35, 590197), (95, 217441), (133, 155315), (665, 31063)]