21311199

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26021}}^1$

素因数の和:26047

約数の個数: 24

約数和(自身を含む): 37888032

約数和(自身を除く): 16576833

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26021, 78063, 182147, 234189, 338273, 546441, 1014819, 1639323, 2367911, 3044457, 7103733, 21311199]

約数ペア:

[(1, 21311199), (3, 7103733), (7, 3044457), (9, 2367911), (13, 1639323), (21, 1014819), (39, 546441), (63, 338273), (91, 234189), (117, 182147), (273, 78063), (819, 26021)]