21872444

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45191}}^1$

素因数の和:45217

約数の個数: 18

約数和(自身を含む): 42073752

約数和(自身を除く): 20201308

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45191, 90382, 180764, 497101, 994202, 1988404, 5468111, 10936222, 21872444]

約数ペア:

[(1, 21872444), (2, 10936222), (4, 5468111), (11, 1988404), (22, 994202), (44, 497101), (121, 180764), (242, 90382), (484, 45191)]