31215105

素因数分解:

$3^3\times 5^1\times {\mathrm{231223}}^1$

素因数の和:231237

約数の個数: 16

約数和(自身を含む): 55493760

約数和(自身を除く): 24278655

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 231223, 693669, 1156115, 2081007, 3468345, 6243021, 10405035, 31215105]

約数ペア:

[(1, 31215105), (3, 10405035), (5, 6243021), (9, 3468345), (15, 2081007), (27, 1156115), (45, 693669), (135, 231223)]