21752631

素因数分解:

$3^6\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:634

約数の個数: 28

約数和(自身を含む): 33288408

約数和(自身を除く): 11535777

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 563, 729, 1431, 1689, 4293, 5067, 12879, 15201, 29839, 38637, 45603, 89517, 136809, 268551, 410427, 805653, 2416959, 7250877, 21752631]

約数ペア:

[(1, 21752631), (3, 7250877), (9, 2416959), (27, 805653), (53, 410427), (81, 268551), (159, 136809), (243, 89517), (477, 45603), (563, 38637), (729, 29839), (1431, 15201), (1689, 12879), (4293, 5067)]