28780367

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2689}}^1$

素因数の和:2846

約数の個数: 16

約数和(自身を含む): 36153600

約数和(自身を除く): 7373233

約数列:

[1, 7, 11, 77, 139, 973, 1529, 2689, 10703, 18823, 29579, 207053, 373771, 2616397, 4111481, 28780367]

約数ペア:

[(1, 28780367), (7, 4111481), (11, 2616397), (77, 373771), (139, 207053), (973, 29579), (1529, 18823), (2689, 10703)]