27980265

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20959}}^1$

素因数の和:21056

約数の個数: 16

約数和(自身を含む): 45273600

約数和(自身を除く): 17293335

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 20959, 62877, 104795, 314385, 1865351, 5596053, 9326755, 27980265]

約数ペア:

[(1, 27980265), (3, 9326755), (5, 5596053), (15, 1865351), (89, 314385), (267, 104795), (445, 62877), (1335, 20959)]