21780088

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247501}}^1$

素因数の和:247518

約数の個数: 16

約数和(自身を含む): 44550360

約数和(自身を除く): 22770272

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247501, 495002, 990004, 1980008, 2722511, 5445022, 10890044, 21780088]

約数ペア:

[(1, 21780088), (2, 10890044), (4, 5445022), (8, 2722511), (11, 1980008), (22, 990004), (44, 495002), (88, 247501)]