21000741895

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31580063}}^1$

素因数の和:31580094

約数の個数: 16

約数和(自身を含む): 30316861440

約数和(自身を除く): 9316119545

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31580063, 157900315, 221060441, 600021197, 1105302205, 3000105985, 4200148379, 21000741895]

約数ペア:

[(1, 21000741895), (5, 4200148379), (7, 3000105985), (19, 1105302205), (35, 600021197), (95, 221060441), (133, 157900315), (665, 31580063)]