20917168

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18413}}^1$

素因数の和:18492

約数の個数: 20

約数和(自身を含む): 41100048

約数和(自身を除く): 20182880

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18413, 36826, 73652, 147304, 294608, 1307323, 2614646, 5229292, 10458584, 20917168]

約数ペア:

[(1, 20917168), (2, 10458584), (4, 5229292), (8, 2614646), (16, 1307323), (71, 294608), (142, 147304), (284, 73652), (568, 36826), (1136, 18413)]