21292061

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1979}}^1$

素因数の和:2068

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 4368739

約数列:

[1, 7, 29, 53, 203, 371, 1537, 1979, 10759, 13853, 57391, 104887, 401737, 734209, 3041723, 21292061]

約数ペア:

[(1, 21292061), (7, 3041723), (29, 734209), (53, 401737), (203, 104887), (371, 57391), (1537, 13853), (1979, 10759)]