28707921

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1847}}^1$

素因数の和:2021

約数の個数: 24

約数和(自身を含む): 45549504

約数和(自身を除く): 16841583

約数列:

[1, 3, 9, 11, 33, 99, 157, 471, 1413, 1727, 1847, 5181, 5541, 15543, 16623, 20317, 60951, 182853, 289979, 869937, 2609811, 3189769, 9569307, 28707921]

約数ペア:

[(1, 28707921), (3, 9569307), (9, 3189769), (11, 2609811), (33, 869937), (99, 289979), (157, 182853), (471, 60951), (1413, 20317), (1727, 16623), (1847, 15543), (5181, 5541)]