12942585

素因数分解:

$3^4\times 5^1\times {\mathrm{31957}}^1$

素因数の和:31974

約数の個数: 20

約数和(自身を含む): 23201508

約数和(自身を除く): 10258923

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31957, 95871, 159785, 287613, 479355, 862839, 1438065, 2588517, 4314195, 12942585]

約数ペア:

[(1, 12942585), (3, 4314195), (5, 2588517), (9, 1438065), (15, 862839), (27, 479355), (45, 287613), (81, 159785), (135, 95871), (405, 31957)]