21344272

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32537}}^1$

素因数の和:32586

約数の個数: 20

約数和(自身を含む): 42364476

約数和(自身を除く): 21020204

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32537, 65074, 130148, 260296, 520592, 1334017, 2668034, 5336068, 10672136, 21344272]

約数ペア:

[(1, 21344272), (2, 10672136), (4, 5336068), (8, 2668034), (16, 1334017), (41, 520592), (82, 260296), (164, 130148), (328, 65074), (656, 32537)]