19667665

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 24094800

約数和(自身を除く): 4427135

約数列:

[1, 5, 89, 193, 229, 445, 965, 1145, 17177, 20381, 44197, 85885, 101905, 220985, 3933533, 19667665]

約数ペア:

[(1, 19667665), (5, 3933533), (89, 220985), (193, 101905), (229, 85885), (445, 44197), (965, 20381), (1145, 17177)]