71821778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223049}}^1$

素因数の和:223081

約数の個数: 16

約数和(自身を含む): 128476800

約数和(自身を除く): 56655022

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 223049, 446098, 1561343, 3122686, 5130127, 10260254, 35910889, 71821778]

約数ペア:

[(1, 71821778), (2, 35910889), (7, 10260254), (14, 5130127), (23, 3122686), (46, 1561343), (161, 446098), (322, 223049)]