20349355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6661}}^1$

素因数の和:6726

約数の個数: 16

約数和(自身を含む): 26861184

約数和(自身を除く): 6511829

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6661, 33305, 86593, 313067, 432965, 1565335, 4069871, 20349355]

約数ペア:

[(1, 20349355), (5, 4069871), (13, 1565335), (47, 432965), (65, 313067), (235, 86593), (611, 33305), (3055, 6661)]