20811436

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{1123}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 37671984

約数和(自身を除く): 16860548

約数列:

[1, 2, 4, 41, 82, 113, 164, 226, 452, 1123, 2246, 4492, 4633, 9266, 18532, 46043, 92086, 126899, 184172, 253798, 507596, 5202859, 10405718, 20811436]

約数ペア:

[(1, 20811436), (2, 10405718), (4, 5202859), (41, 507596), (82, 253798), (113, 184172), (164, 126899), (226, 92086), (452, 46043), (1123, 18532), (2246, 9266), (4492, 4633)]