21199624

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64633}}^1$

素因数の和:64680

約数の個数: 16

約数和(自身を含む): 40719420

約数和(自身を除く): 19519796

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64633, 129266, 258532, 517064, 2649953, 5299906, 10599812, 21199624]

約数ペア:

[(1, 21199624), (2, 10599812), (4, 5299906), (8, 2649953), (41, 517064), (82, 258532), (164, 129266), (328, 64633)]