20866222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{4639}}^1$

素因数の和:4827

約数の個数: 16

約数和(自身を含む): 33909120

約数和(自身を除く): 13042898

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4498, 4639, 9278, 60307, 120614, 802547, 1605094, 10433111, 20866222]

約数ペア:

[(1, 20866222), (2, 10433111), (13, 1605094), (26, 802547), (173, 120614), (346, 60307), (2249, 9278), (4498, 4639)]