21001310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{190921}}^1$

素因数の和:190939

約数の個数: 16

約数和(自身を含む): 41239152

約数和(自身を除く): 20237842

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 190921, 381842, 954605, 1909210, 2100131, 4200262, 10500655, 21001310]

約数ペア:

[(1, 21001310), (2, 10500655), (5, 4200262), (10, 2100131), (11, 1909210), (22, 954605), (55, 381842), (110, 190921)]