20845071

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9377}}^1$

素因数の和:9415

約数の個数: 24

約数和(自身を含む): 34135920

約数和(自身を除く): 13290849

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 9377, 28131, 84393, 121901, 178163, 365703, 534489, 1097109, 1603467, 2316119, 6948357, 20845071]

約数ペア:

[(1, 20845071), (3, 6948357), (9, 2316119), (13, 1603467), (19, 1097109), (39, 534489), (57, 365703), (117, 178163), (171, 121901), (247, 84393), (741, 28131), (2223, 9377)]