21434949

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4993}}^1$

素因数の和:5058

約数の個数: 20

約数和(自身を含む): 32630796

約数和(自身を除く): 11195847

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4993, 14979, 44937, 134811, 264629, 404433, 793887, 2381661, 7144983, 21434949]

約数ペア:

[(1, 21434949), (3, 7144983), (9, 2381661), (27, 793887), (53, 404433), (81, 264629), (159, 134811), (477, 44937), (1431, 14979), (4293, 4993)]