121415517

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{4789}}^1$

素因数の和:5114

約数の個数: 20

約数和(自身を含む): 181991260

約数和(自身を除く): 60575743

約数列:

[1, 3, 9, 27, 81, 313, 939, 2817, 4789, 8451, 14367, 25353, 43101, 129303, 387909, 1498957, 4496871, 13490613, 40471839, 121415517]

約数ペア:

[(1, 121415517), (3, 40471839), (9, 13490613), (27, 4496871), (81, 1498957), (313, 387909), (939, 129303), (2817, 43101), (4789, 25353), (8451, 14367)]