21098384

素因数分解:

$2^4\times {\mathrm{1031}}^1\times {\mathrm{1279}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 40949760

約数和(自身を除く): 19851376

約数列:

[1, 2, 4, 8, 16, 1031, 1279, 2062, 2558, 4124, 5116, 8248, 10232, 16496, 20464, 1318649, 2637298, 5274596, 10549192, 21098384]

約数ペア:

[(1, 21098384), (2, 10549192), (4, 5274596), (8, 2637298), (16, 1318649), (1031, 20464), (1279, 16496), (2062, 10232), (2558, 8248), (4124, 5116)]