20876715

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10789}}^1$

素因数の和:10843

約数の個数: 24

約数和(自身を含む): 37031280

約数和(自身を除く): 16154565

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10789, 32367, 53945, 97101, 161835, 463927, 485505, 1391781, 2319635, 4175343, 6958905, 20876715]

約数ペア:

[(1, 20876715), (3, 6958905), (5, 4175343), (9, 2319635), (15, 1391781), (43, 485505), (45, 463927), (129, 161835), (215, 97101), (387, 53945), (645, 32367), (1935, 10789)]