20518113

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12689}}^1$

素因数の和:12717

約数の個数: 24

約数和(自身を含む): 34719840

約数和(自身を除く): 14201727

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12689, 38067, 88823, 139579, 266469, 418737, 621761, 977053, 1865283, 2931159, 6839371, 20518113]

約数ペア:

[(1, 20518113), (3, 6839371), (7, 2931159), (11, 1865283), (21, 977053), (33, 621761), (49, 418737), (77, 266469), (147, 139579), (231, 88823), (539, 38067), (1617, 12689)]