21224621818

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1\times {\mathrm{161323}}^1$

素因数の和:161901

約数の個数: 16

約数和(自身を含む): 32116381920

約数和(自身を除く): 10891760102

約数列:

[1, 2, 157, 314, 419, 838, 65783, 131566, 161323, 322646, 25327711, 50655422, 67594337, 135188674, 10612310909, 21224621818]

約数ペア:

[(1, 21224621818), (2, 10612310909), (157, 135188674), (314, 67594337), (419, 50655422), (838, 25327711), (65783, 322646), (131566, 161323)]