19963145

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:604

約数の個数: 16

約数和(自身を含む): 24500880

約数和(自身を除く): 4537735

約数列:

[1, 5, 89, 113, 397, 445, 565, 1985, 10057, 35333, 44861, 50285, 176665, 224305, 3992629, 19963145]

約数ペア:

[(1, 19963145), (5, 3992629), (89, 224305), (113, 176665), (397, 50285), (445, 44861), (565, 35333), (1985, 10057)]