20875484

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{8377}}^1$

素因数の和:8477

約数の個数: 24

約数和(自身を含む): 42225120

約数和(自身を除く): 21349636

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 8377, 16754, 33508, 58639, 117278, 234556, 745553, 1491106, 2982212, 5218871, 10437742, 20875484]

約数ペア:

[(1, 20875484), (2, 10437742), (4, 5218871), (7, 2982212), (14, 1491106), (28, 745553), (89, 234556), (178, 117278), (356, 58639), (623, 33508), (1246, 16754), (2492, 8377)]