18991244

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1543}}^1$

素因数の和:1745

約数の個数: 24

約数和(自身を含む): 35407008

約数和(自身を除く): 16415764

約数列:

[1, 2, 4, 17, 34, 68, 181, 362, 724, 1543, 3077, 3086, 6154, 6172, 12308, 26231, 52462, 104924, 279283, 558566, 1117132, 4747811, 9495622, 18991244]

約数ペア:

[(1, 18991244), (2, 9495622), (4, 4747811), (17, 1117132), (34, 558566), (68, 279283), (181, 104924), (362, 52462), (724, 26231), (1543, 12308), (3077, 6172), (3086, 6154)]