21244515

素因数分解:

$3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5113}}^1$

素因数の和:5398

約数の個数: 16

約数和(自身を含む): 34120608

約数和(自身を除く): 12876093

約数列:

[1, 3, 5, 15, 277, 831, 1385, 4155, 5113, 15339, 25565, 76695, 1416301, 4248903, 7081505, 21244515]

約数ペア:

[(1, 21244515), (3, 7081505), (5, 4248903), (15, 1416301), (277, 76695), (831, 25565), (1385, 15339), (4155, 5113)]