21494681

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5119}}^1$

素因数の和:5168

約数の個数: 16

約数和(自身を含む): 25804800

約数和(自身を除く): 4310119

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 5119, 66547, 87023, 97261, 1131299, 1264393, 1653437, 21494681]

約数ペア:

[(1, 21494681), (13, 1653437), (17, 1264393), (19, 1131299), (221, 97261), (247, 87023), (323, 66547), (4199, 5119)]