21497864

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{44053}}^1$

素因数の和:44120

約数の個数: 16

約数和(自身を含む): 40970220

約数和(自身を除く): 19472356

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 44053, 88106, 176212, 352424, 2687233, 5374466, 10748932, 21497864]

約数ペア:

[(1, 21497864), (2, 10748932), (4, 5374466), (8, 2687233), (61, 352424), (122, 176212), (244, 88106), (488, 44053)]