28980939

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23971}}^1$

素因数の和:24018

約数の個数: 16

約数和(自身を含む): 42957824

約数和(自身を除く): 13976885

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23971, 71913, 311623, 743101, 934869, 2229303, 9660313, 28980939]

約数ペア:

[(1, 28980939), (3, 9660313), (13, 2229303), (31, 934869), (39, 743101), (93, 311623), (403, 71913), (1209, 23971)]