21859184

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10429}}^1$

素因数の和:10568

約数の個数: 20

約数和(自身を含む): 42679560

約数和(自身を除く): 20820376

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10429, 20858, 41716, 83432, 166864, 1366199, 2732398, 5464796, 10929592, 21859184]

約数ペア:

[(1, 21859184), (2, 10929592), (4, 5464796), (8, 2732398), (16, 1366199), (131, 166864), (262, 83432), (524, 41716), (1048, 20858), (2096, 10429)]