21740860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14891}}^1$

素因数の和:14973

約数の個数: 24

約数和(自身を含む): 46284336

約数和(自身を除く): 24543476

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14891, 29782, 59564, 74455, 148910, 297820, 1087043, 2174086, 4348172, 5435215, 10870430, 21740860]

約数ペア:

[(1, 21740860), (2, 10870430), (4, 5435215), (5, 4348172), (10, 2174086), (20, 1087043), (73, 297820), (146, 148910), (292, 74455), (365, 59564), (730, 29782), (1460, 14891)]