18783260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21841}}^1$

素因数の和:21893

約数の個数: 24

約数和(自身を含む): 40364016

約数和(自身を除く): 21580756

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 21841, 43682, 87364, 109205, 218410, 436820, 939163, 1878326, 3756652, 4695815, 9391630, 18783260]

約数ペア:

[(1, 18783260), (2, 9391630), (4, 4695815), (5, 3756652), (10, 1878326), (20, 939163), (43, 436820), (86, 218410), (172, 109205), (215, 87364), (430, 43682), (860, 21841)]