20316921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3041}}^1$

素因数の和:3192

約数の個数: 16

約数和(自身を含む): 28911168

約数和(自身を除く): 8594247

約数列:

[1, 3, 17, 51, 131, 393, 2227, 3041, 6681, 9123, 51697, 155091, 398371, 1195113, 6772307, 20316921]

約数ペア:

[(1, 20316921), (3, 6772307), (17, 1195113), (51, 398371), (131, 155091), (393, 51697), (2227, 9123), (3041, 6681)]