21881192

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20879}}^1$

素因数の和:21016

約数の個数: 16

約数和(自身を含む): 41342400

約数和(自身を除く): 19461208

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20879, 41758, 83516, 167032, 2735149, 5470298, 10940596, 21881192]

約数ペア:

[(1, 21881192), (2, 10940596), (4, 5470298), (8, 2735149), (131, 167032), (262, 83516), (524, 41758), (1048, 20879)]