20920188

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40543}}^1$

素因数の和:40593

約数の個数: 24

約数和(自身を含む): 49950208

約数和(自身を除く): 29030020

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40543, 81086, 121629, 162172, 243258, 486516, 1743349, 3486698, 5230047, 6973396, 10460094, 20920188]

約数ペア:

[(1, 20920188), (2, 10460094), (3, 6973396), (4, 5230047), (6, 3486698), (12, 1743349), (43, 486516), (86, 243258), (129, 162172), (172, 121629), (258, 81086), (516, 40543)]