19541488

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18229}}^1$

素因数の和:18304

約数の個数: 20

約数和(自身を含む): 38428840

約数和(自身を除く): 18887352

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18229, 36458, 72916, 145832, 291664, 1221343, 2442686, 4885372, 9770744, 19541488]

約数ペア:

[(1, 19541488), (2, 9770744), (4, 4885372), (8, 2442686), (16, 1221343), (67, 291664), (134, 145832), (268, 72916), (536, 36458), (1072, 18229)]