21189190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192629}}^1$

素因数の和:192647

約数の個数: 16

約数和(自身を含む): 41608080

約数和(自身を除く): 20418890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192629, 385258, 963145, 1926290, 2118919, 4237838, 10594595, 21189190]

約数ペア:

[(1, 21189190), (2, 10594595), (5, 4237838), (10, 2118919), (11, 1926290), (22, 963145), (55, 385258), (110, 192629)]