20382957

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1289}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 33808320

約数和(自身を除く): 13425363

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1289, 1757, 2259, 3867, 5271, 9023, 11601, 15813, 27069, 81207, 323539, 970617, 2264773, 2911851, 6794319, 20382957]

約数ペア:

[(1, 20382957), (3, 6794319), (7, 2911851), (9, 2264773), (21, 970617), (63, 323539), (251, 81207), (753, 27069), (1289, 15813), (1757, 11601), (2259, 9023), (3867, 5271)]