18820754

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2221}}^1$

素因数の和:2465

約数の個数: 16

約数和(自身を含む): 29863680

約数和(自身を除く): 11042926

約数列:

[1, 2, 19, 38, 223, 446, 2221, 4237, 4442, 8474, 42199, 84398, 495283, 990566, 9410377, 18820754]

約数ペア:

[(1, 18820754), (2, 9410377), (19, 990566), (38, 495283), (223, 84398), (446, 42199), (2221, 8474), (4237, 4442)]