31231215

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4993}}^1$

素因数の和:5143

約数の個数: 24

約数和(自身を含む): 54534480

約数和(自身を除く): 23303265

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 4993, 6255, 14979, 24965, 44937, 74895, 224685, 694027, 2082081, 3470135, 6246243, 10410405, 31231215]

約数ペア:

[(1, 31231215), (3, 10410405), (5, 6246243), (9, 3470135), (15, 2082081), (45, 694027), (139, 224685), (417, 74895), (695, 44937), (1251, 24965), (2085, 14979), (4993, 6255)]