21170648

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20201}}^1$

素因数の和:20338

約数の個数: 16

約数和(自身を含む): 39999960

約数和(自身を除く): 18829312

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20201, 40402, 80804, 161608, 2646331, 5292662, 10585324, 21170648]

約数ペア:

[(1, 21170648), (2, 10585324), (4, 5292662), (8, 2646331), (131, 161608), (262, 80804), (524, 40402), (1048, 20201)]