20716209

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5857}}^1$

素因数の和:5997

約数の個数: 16

約数和(自身を含む): 30930240

約数和(自身を除く): 10214031

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5857, 17571, 52713, 158139, 767267, 2301801, 6905403, 20716209]

約数ペア:

[(1, 20716209), (3, 6905403), (9, 2301801), (27, 767267), (131, 158139), (393, 52713), (1179, 17571), (3537, 5857)]