20490129

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1489}}^1$

素因数の和:1645

約数の個数: 24

約数和(自身を含む): 32541600

約数和(自身を除く): 12051471

約数列:

[1, 3, 9, 11, 33, 99, 139, 417, 1251, 1489, 1529, 4467, 4587, 13401, 13761, 16379, 49137, 147411, 206971, 620913, 1862739, 2276681, 6830043, 20490129]

約数ペア:

[(1, 20490129), (3, 6830043), (9, 2276681), (11, 1862739), (33, 620913), (99, 206971), (139, 147411), (417, 49137), (1251, 16379), (1489, 13761), (1529, 13401), (4467, 4587)]