81218745

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44021}}^1$

素因数の和:44073

約数の個数: 24

約数和(自身を含む): 144216072

約数和(自身を除く): 62997327

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 44021, 132063, 220105, 396189, 660315, 1804861, 1980945, 5414583, 9024305, 16243749, 27072915, 81218745]

約数ペア:

[(1, 81218745), (3, 27072915), (5, 16243749), (9, 9024305), (15, 5414583), (41, 1980945), (45, 1804861), (123, 660315), (205, 396189), (369, 220105), (615, 132063), (1845, 44021)]