25205913

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 38554880

約数和(自身を除く): 13348967

約数列:

[1, 3, 9, 19, 57, 171, 223, 661, 669, 1983, 2007, 4237, 5949, 12559, 12711, 37677, 38133, 113031, 147403, 442209, 1326627, 2800657, 8401971, 25205913]

約数ペア:

[(1, 25205913), (3, 8401971), (9, 2800657), (19, 1326627), (57, 442209), (171, 147403), (223, 113031), (661, 38133), (669, 37677), (1983, 12711), (2007, 12559), (4237, 5949)]