21979593

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{3119}}^1$

素因数の和:3163

約数の個数: 24

約数和(自身を含む): 34070400

約数和(自身を除く): 12090807

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 3119, 7047, 9357, 28071, 84213, 90451, 252639, 271353, 757917, 814059, 2442177, 7326531, 21979593]

約数ペア:

[(1, 21979593), (3, 7326531), (9, 2442177), (27, 814059), (29, 757917), (81, 271353), (87, 252639), (243, 90451), (261, 84213), (783, 28071), (2349, 9357), (3119, 7047)]