18907605

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4721}}^1$

素因数の和:4821

約数の個数: 24

約数和(自身を含む): 33148440

約数和(自身を除く): 14240835

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 4721, 14163, 23605, 42489, 70815, 212445, 420169, 1260507, 2100845, 3781521, 6302535, 18907605]

約数ペア:

[(1, 18907605), (3, 6302535), (5, 3781521), (9, 2100845), (15, 1260507), (45, 420169), (89, 212445), (267, 70815), (445, 42489), (801, 23605), (1335, 14163), (4005, 4721)]