20403165

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12479}}^1$

素因数の和:12596

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 12544035

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12479, 37437, 62395, 187185, 1360211, 4080633, 6801055, 20403165]

約数ペア:

[(1, 20403165), (3, 6801055), (5, 4080633), (15, 1360211), (109, 187185), (327, 62395), (545, 37437), (1635, 12479)]