12987555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3343}}^1$

素因数の和:3395

約数の個数: 32

約数和(自身を含む): 24397824

約数和(自身を除く): 11410269

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3343, 3885, 10029, 16715, 23401, 50145, 70203, 117005, 123691, 351015, 371073, 618455, 865837, 1855365, 2597511, 4329185, 12987555]

約数ペア:

[(1, 12987555), (3, 4329185), (5, 2597511), (7, 1855365), (15, 865837), (21, 618455), (35, 371073), (37, 351015), (105, 123691), (111, 117005), (185, 70203), (259, 50145), (555, 23401), (777, 16715), (1295, 10029), (3343, 3885)]