156789321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3719}}^1$

素因数の和:3805

約数の個数: 32

約数和(自身を含む): 239984640

約数和(自身を除く): 83195319

約数列:

[1, 3, 13, 23, 39, 47, 69, 141, 299, 611, 897, 1081, 1833, 3243, 3719, 11157, 14053, 42159, 48347, 85537, 145041, 174793, 256611, 524379, 1111981, 2272309, 3335943, 4020239, 6816927, 12060717, 52263107, 156789321]

約数ペア:

[(1, 156789321), (3, 52263107), (13, 12060717), (23, 6816927), (39, 4020239), (47, 3335943), (69, 2272309), (141, 1111981), (299, 524379), (611, 256611), (897, 174793), (1081, 145041), (1833, 85537), (3243, 48347), (3719, 42159), (11157, 14053)]