20742495

素因数分解:

$3^1\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1559}}^1$

素因数の和:2454

約数の個数: 16

約数和(自身を含む): 33246720

約数和(自身を除く): 12504225

約数列:

[1, 3, 5, 15, 887, 1559, 2661, 4435, 4677, 7795, 13305, 23385, 1382833, 4148499, 6914165, 20742495]

約数ペア:

[(1, 20742495), (3, 6914165), (5, 4148499), (15, 1382833), (887, 23385), (1559, 13305), (2661, 7795), (4435, 4677)]