20772892

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9391}}^1$

素因数の和:9481

約数の個数: 24

約数和(自身を含む): 42076160

約数和(自身を除く): 21303268

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9391, 18782, 37564, 65737, 131474, 262948, 741889, 1483778, 2967556, 5193223, 10386446, 20772892]

約数ペア:

[(1, 20772892), (2, 10386446), (4, 5193223), (7, 2967556), (14, 1483778), (28, 741889), (79, 262948), (158, 131474), (316, 65737), (553, 37564), (1106, 18782), (2212, 9391)]