21935785

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{991}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 27855360

約数和(自身を除く): 5919575

約数列:

[1, 5, 19, 95, 233, 991, 1165, 4427, 4955, 18829, 22135, 94145, 230903, 1154515, 4387157, 21935785]

約数ペア:

[(1, 21935785), (5, 4387157), (19, 1154515), (95, 230903), (233, 94145), (991, 22135), (1165, 18829), (4427, 4955)]