21619180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98269}}^1$

素因数の和:98289

約数の個数: 24

約数和(自身を含む): 49528080

約数和(自身を除く): 27908900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98269, 196538, 393076, 491345, 982690, 1080959, 1965380, 2161918, 4323836, 5404795, 10809590, 21619180]

約数ペア:

[(1, 21619180), (2, 10809590), (4, 5404795), (5, 4323836), (10, 2161918), (11, 1965380), (20, 1080959), (22, 982690), (44, 491345), (55, 393076), (110, 196538), (220, 98269)]