81579915

素因数分解:

$3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{5477}}^1$

素因数の和:5819

約数の個数: 24

約数和(自身を含む): 141858288

約数和(自身を除く): 60278373

約数列:

[1, 3, 5, 9, 15, 45, 331, 993, 1655, 2979, 4965, 5477, 14895, 16431, 27385, 49293, 82155, 246465, 1812887, 5438661, 9064435, 16315983, 27193305, 81579915]

約数ペア:

[(1, 81579915), (3, 27193305), (5, 16315983), (9, 9064435), (15, 5438661), (45, 1812887), (331, 246465), (993, 82155), (1655, 49293), (2979, 27385), (4965, 16431), (5477, 14895)]