21400119

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20323}}^1$

素因数の和:20348

約数の個数: 20

約数和(自身を含む): 34428856

約数和(自身を除く): 13028737

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20323, 60969, 182907, 264199, 548721, 792597, 1646163, 2377791, 7133373, 21400119]

約数ペア:

[(1, 21400119), (3, 7133373), (9, 2377791), (13, 1646163), (27, 792597), (39, 548721), (81, 264199), (117, 182907), (351, 60969), (1053, 20323)]