27780015

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20809}}^1$

素因数の和:20906

約数の個数: 16

約数和(自身を含む): 44949600

約数和(自身を除く): 17169585

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 20809, 62427, 104045, 312135, 1852001, 5556003, 9260005, 27780015]

約数ペア:

[(1, 27780015), (3, 9260005), (5, 5556003), (15, 1852001), (89, 312135), (267, 104045), (445, 62427), (1335, 20809)]