19698512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72421}}^1$

素因数の和:72446

約数の個数: 20

約数和(自身を含む): 40411476

約数和(自身を除く): 20712964

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72421, 144842, 289684, 579368, 1158736, 1231157, 2462314, 4924628, 9849256, 19698512]

約数ペア:

[(1, 19698512), (2, 9849256), (4, 4924628), (8, 2462314), (16, 1231157), (17, 1158736), (34, 579368), (68, 289684), (136, 144842), (272, 72421)]