21597597

素因数分解:

$3^5\times 7^1\times {\mathrm{12697}}^1$

素因数の和:12719

約数の個数: 24

約数和(自身を含む): 36976576

約数和(自身を除く): 15378979

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12697, 38091, 88879, 114273, 266637, 342819, 799911, 1028457, 2399733, 3085371, 7199199, 21597597]

約数ペア:

[(1, 21597597), (3, 7199199), (7, 3085371), (9, 2399733), (21, 1028457), (27, 799911), (63, 342819), (81, 266637), (189, 114273), (243, 88879), (567, 38091), (1701, 12697)]