20969751

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6551}}^1$

素因数の和:6662

約数の個数: 16

約数和(自身を含む): 30820608

約数和(自身を除く): 9850857

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 6551, 19653, 72061, 216183, 635447, 1906341, 6989917, 20969751]

約数ペア:

[(1, 20969751), (3, 6989917), (11, 1906341), (33, 635447), (97, 216183), (291, 72061), (1067, 19653), (3201, 6551)]