21705762

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{278279}}^1$

素因数の和:278297

約数の個数: 16

約数和(自身を含む): 46751040

約数和(自身を除く): 25045278

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 278279, 556558, 834837, 1669674, 3617627, 7235254, 10852881, 21705762]

約数ペア:

[(1, 21705762), (2, 10852881), (3, 7235254), (6, 3617627), (13, 1669674), (26, 834837), (39, 556558), (78, 278279)]