20408091

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1187}}^1$

素因数の和:1722

約数の個数: 16

約数和(自身を含む): 29766528

約数和(自身を除く): 9358437

約数列:

[1, 3, 11, 33, 521, 1187, 1563, 3561, 5731, 13057, 17193, 39171, 618427, 1855281, 6802697, 20408091]

約数ペア:

[(1, 20408091), (3, 6802697), (11, 1855281), (33, 618427), (521, 39171), (1187, 17193), (1563, 13057), (3561, 5731)]