21825559

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 25738560

約数和(自身を除く): 3913001

約数列:

[1, 7, 53, 89, 371, 623, 661, 4627, 4717, 33019, 35033, 58829, 245231, 411803, 3117937, 21825559]

約数ペア:

[(1, 21825559), (7, 3117937), (53, 411803), (89, 245231), (371, 58829), (623, 35033), (661, 33019), (4627, 4717)]