81277641

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{81359}}^1$

素因数の和:81405

約数の個数: 16

約数和(自身を含む): 123667200

約数和(自身を除く): 42389559

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 81359, 244077, 732231, 2196693, 3010283, 9030849, 27092547, 81277641]

約数ペア:

[(1, 81277641), (3, 27092547), (9, 9030849), (27, 3010283), (37, 2196693), (111, 732231), (333, 244077), (999, 81359)]