20509724

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{857}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 37285248

約数和(自身を除く): 16775524

約数列:

[1, 2, 4, 31, 62, 124, 193, 386, 772, 857, 1714, 3428, 5983, 11966, 23932, 26567, 53134, 106268, 165401, 330802, 661604, 5127431, 10254862, 20509724]

約数ペア:

[(1, 20509724), (2, 10254862), (4, 5127431), (31, 661604), (62, 330802), (124, 165401), (193, 106268), (386, 53134), (772, 26567), (857, 23932), (1714, 11966), (3428, 5983)]