21376585

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1\times {\mathrm{311}}^1$

素因数の和:608

約数の個数: 16

約数和(自身を含む): 26282880

約数和(自身を除く): 4906295

約数列:

[1, 5, 59, 233, 295, 311, 1165, 1555, 13747, 18349, 68735, 72463, 91745, 362315, 4275317, 21376585]

約数ペア:

[(1, 21376585), (5, 4275317), (59, 362315), (233, 91745), (295, 72463), (311, 68735), (1165, 18349), (1555, 13747)]