20717216

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{49801}}^1$

素因数の和:49824

約数の個数: 24

約数和(自身を含む): 43925364

約数和(自身を除く): 23208148

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 49801, 99602, 199204, 398408, 647413, 796816, 1294826, 1593632, 2589652, 5179304, 10358608, 20717216]

約数ペア:

[(1, 20717216), (2, 10358608), (4, 5179304), (8, 2589652), (13, 1593632), (16, 1294826), (26, 796816), (32, 647413), (52, 398408), (104, 199204), (208, 99602), (416, 49801)]