21753651

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{1153}}^1$

素因数の和:1506

約数の個数: 16

約数和(自身を含む): 30650240

約数和(自身を除く): 8896589

約数列:

[1, 3, 19, 57, 331, 993, 1153, 3459, 6289, 18867, 21907, 65721, 381643, 1144929, 7251217, 21753651]

約数ペア:

[(1, 21753651), (3, 7251217), (19, 1144929), (57, 381643), (331, 65721), (993, 21907), (1153, 18867), (3459, 6289)]