28788405

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{51871}}^1$

素因数の和:51916

約数の個数: 16

約数和(自身を含む): 47307264

約数和(自身を除く): 18518859

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 51871, 155613, 259355, 778065, 1919227, 5757681, 9596135, 28788405]

約数ペア:

[(1, 28788405), (3, 9596135), (5, 5757681), (15, 1919227), (37, 778065), (111, 259355), (185, 155613), (555, 51871)]