28538211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19777}}^1$

素因数の和:19830

約数の個数: 16

約数和(自身を含む): 42087584

約数和(自身を除く): 13549373

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 19777, 59331, 257101, 731749, 771303, 2195247, 9512737, 28538211]

約数ペア:

[(1, 28538211), (3, 9512737), (13, 2195247), (37, 771303), (39, 731749), (111, 257101), (481, 59331), (1443, 19777)]