12138405

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21871}}^1$

素因数の和:21916

約数の個数: 16

約数和(自身を含む): 19947264

約数和(自身を除く): 7808859

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 21871, 65613, 109355, 328065, 809227, 2427681, 4046135, 12138405]

約数ペア:

[(1, 12138405), (3, 4046135), (5, 2427681), (15, 809227), (37, 328065), (111, 109355), (185, 65613), (555, 21871)]