21091180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95869}}^1$

素因数の和:95889

約数の個数: 24

約数和(自身を含む): 48318480

約数和(自身を除く): 27227300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95869, 191738, 383476, 479345, 958690, 1054559, 1917380, 2109118, 4218236, 5272795, 10545590, 21091180]

約数ペア:

[(1, 21091180), (2, 10545590), (4, 5272795), (5, 4218236), (10, 2109118), (11, 1917380), (20, 1054559), (22, 958690), (44, 479345), (55, 383476), (110, 191738), (220, 95869)]