21110980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95959}}^1$

素因数の和:95979

約数の個数: 24

約数和(自身を含む): 48363840

約数和(自身を除く): 27252860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95959, 191918, 383836, 479795, 959590, 1055549, 1919180, 2111098, 4222196, 5277745, 10555490, 21110980]

約数ペア:

[(1, 21110980), (2, 10555490), (4, 5277745), (5, 4222196), (10, 2111098), (11, 1919180), (20, 1055549), (22, 959590), (44, 479795), (55, 383836), (110, 191918), (220, 95959)]