21726422

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:971

約数の個数: 16

約数和(自身を含む): 33216000

約数和(自身を除く): 11489578

約数列:

[1, 2, 79, 158, 199, 398, 691, 1382, 15721, 31442, 54589, 109178, 137509, 275018, 10863211, 21726422]

約数ペア:

[(1, 21726422), (2, 10863211), (79, 275018), (158, 137509), (199, 109178), (398, 54589), (691, 31442), (1382, 15721)]