19909168

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54101}}^1$

素因数の和:54132

約数の個数: 20

約数和(自身を含む): 40251888

約数和(自身を除く): 20342720

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54101, 108202, 216404, 432808, 865616, 1244323, 2488646, 4977292, 9954584, 19909168]

約数ペア:

[(1, 19909168), (2, 9954584), (4, 4977292), (8, 2488646), (16, 1244323), (23, 865616), (46, 432808), (92, 216404), (184, 108202), (368, 54101)]