21429727

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 24060960

約数和(自身を除く): 2631233

約数列:

[1, 11, 61, 109, 293, 671, 1199, 3223, 6649, 17873, 31937, 73139, 196603, 351307, 1948157, 21429727]

約数ペア:

[(1, 21429727), (11, 1948157), (61, 351307), (109, 196603), (293, 73139), (671, 31937), (1199, 17873), (3223, 6649)]