19421552

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28229}}^1$

素因数の和:28280

約数の個数: 20

約数和(自身を含む): 38505720

約数和(自身を除く): 19084168

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28229, 56458, 112916, 225832, 451664, 1213847, 2427694, 4855388, 9710776, 19421552]

約数ペア:

[(1, 19421552), (2, 9710776), (4, 4855388), (8, 2427694), (16, 1213847), (43, 451664), (86, 225832), (172, 112916), (344, 56458), (688, 28229)]