21577340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14779}}^1$

素因数の和:14861

約数の個数: 24

約数和(自身を含む): 45936240

約数和(自身を除く): 24358900

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14779, 29558, 59116, 73895, 147790, 295580, 1078867, 2157734, 4315468, 5394335, 10788670, 21577340]

約数ペア:

[(1, 21577340), (2, 10788670), (4, 5394335), (5, 4315468), (10, 2157734), (20, 1078867), (73, 295580), (146, 147790), (292, 73895), (365, 59116), (730, 29558), (1460, 14779)]