81855729

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{613}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 121933032

約数和(自身を除く): 40077303

約数列:

[1, 3, 9, 37, 111, 333, 401, 613, 1203, 1839, 3609, 5517, 14837, 22681, 44511, 68043, 133533, 204129, 245813, 737439, 2212317, 9095081, 27285243, 81855729]

約数ペア:

[(1, 81855729), (3, 27285243), (9, 9095081), (37, 2212317), (111, 737439), (333, 245813), (401, 204129), (613, 133533), (1203, 68043), (1839, 44511), (3609, 22681), (5517, 14837)]