19963255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{733}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 25895520

約数和(自身を除く): 5932265

約数列:

[1, 5, 13, 65, 419, 733, 2095, 3665, 5447, 9529, 27235, 47645, 307127, 1535635, 3992651, 19963255]

約数ペア:

[(1, 19963255), (5, 3992651), (13, 1535635), (65, 307127), (419, 47645), (733, 27235), (2095, 9529), (3665, 5447)]