18494128

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26881}}^1$

素因数の和:26932

約数の個数: 20

約数和(自身を含む): 36667048

約数和(自身を除く): 18172920

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26881, 53762, 107524, 215048, 430096, 1155883, 2311766, 4623532, 9247064, 18494128]

約数ペア:

[(1, 18494128), (2, 9247064), (4, 4623532), (8, 2311766), (16, 1155883), (43, 430096), (86, 215048), (172, 107524), (344, 53762), (688, 26881)]