19878395

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 24328512

約数和(自身を除く): 4450117

約数列:

[1, 5, 113, 151, 233, 565, 755, 1165, 17063, 26329, 35183, 85315, 131645, 175915, 3975679, 19878395]

約数ペア:

[(1, 19878395), (5, 3975679), (113, 175915), (151, 131645), (233, 85315), (565, 35183), (755, 26329), (1165, 17063)]