4020891

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1609}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 6607440

約数和(自身を除く): 2586549

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 1609, 2499, 4827, 11263, 27353, 33789, 78841, 82059, 191471, 236523, 574413, 1340297, 4020891]

約数ペア:

[(1, 4020891), (3, 1340297), (7, 574413), (17, 236523), (21, 191471), (49, 82059), (51, 78841), (119, 33789), (147, 27353), (357, 11263), (833, 4827), (1609, 2499)]