21854740

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14969}}^1$

素因数の和:15051

約数の個数: 24

約数和(自身を含む): 46526760

約数和(自身を除く): 24672020

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14969, 29938, 59876, 74845, 149690, 299380, 1092737, 2185474, 4370948, 5463685, 10927370, 21854740]

約数ペア:

[(1, 21854740), (2, 10927370), (4, 5463685), (5, 4370948), (10, 2185474), (20, 1092737), (73, 299380), (146, 149690), (292, 74845), (365, 59876), (730, 29938), (1460, 14969)]