21515733

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41941}}^1$

素因数の和:41969

約数の個数: 16

約数和(自身を含む): 33553600

約数和(自身を除く): 12037867

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41941, 125823, 377469, 796879, 1132407, 2390637, 7171911, 21515733]

約数ペア:

[(1, 21515733), (3, 7171911), (9, 2390637), (19, 1132407), (27, 796879), (57, 377469), (171, 125823), (513, 41941)]