21480495

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18127}}^1$

素因数の和:18214

約数の個数: 16

約数和(自身を含む): 34805760

約数和(自身を除く): 13325265

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 18127, 54381, 90635, 271905, 1432033, 4296099, 7160165, 21480495]

約数ペア:

[(1, 21480495), (3, 7160165), (5, 4296099), (15, 1432033), (79, 271905), (237, 90635), (395, 54381), (1185, 18127)]