20491527

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{31477}}^1$

素因数の和:31518

約数の個数: 16

約数和(自身を含む): 32233472

約数和(自身を除く): 11741945

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 31477, 94431, 220339, 661017, 975787, 2927361, 6830509, 20491527]

約数ペア:

[(1, 20491527), (3, 6830509), (7, 2927361), (21, 975787), (31, 661017), (93, 220339), (217, 94431), (651, 31477)]