21928085

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{4057}}^1$

素因数の和:4132

約数の個数: 16

約数和(自身を含む): 28048896

約数和(自身を除く): 6120811

約数列:

[1, 5, 23, 47, 115, 235, 1081, 4057, 5405, 20285, 93311, 190679, 466555, 953395, 4385617, 21928085]

約数ペア:

[(1, 21928085), (5, 4385617), (23, 953395), (47, 466555), (115, 190679), (235, 93311), (1081, 20285), (4057, 5405)]