18919018

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{2131}}^1$

素因数の和:2349

約数の個数: 16

約数和(自身を含む): 29779776

約数和(自身を除く): 10860758

約数列:

[1, 2, 23, 46, 193, 386, 2131, 4262, 4439, 8878, 49013, 98026, 411283, 822566, 9459509, 18919018]

約数ペア:

[(1, 18919018), (2, 9459509), (23, 822566), (46, 411283), (193, 98026), (386, 49013), (2131, 8878), (4262, 4439)]