20809926

素因数分解:

$2^1\times 3^3\times {\mathrm{83}}^1\times {\mathrm{4643}}^1$

素因数の和:4737

約数の個数: 32

約数和(自身を含む): 46811520

約数和(自身を除く): 26001594

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 83, 166, 249, 498, 747, 1494, 2241, 4482, 4643, 9286, 13929, 27858, 41787, 83574, 125361, 250722, 385369, 770738, 1156107, 2312214, 3468321, 6936642, 10404963, 20809926]

約数ペア:

[(1, 20809926), (2, 10404963), (3, 6936642), (6, 3468321), (9, 2312214), (18, 1156107), (27, 770738), (54, 385369), (83, 250722), (166, 125361), (249, 83574), (498, 41787), (747, 27858), (1494, 13929), (2241, 9286), (4482, 4643)]