21337209

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41593}}^1$

素因数の和:41621

約数の個数: 16

約数和(自身を含む): 33275200

約数和(自身を除く): 11937991

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41593, 124779, 374337, 790267, 1123011, 2370801, 7112403, 21337209]

約数ペア:

[(1, 21337209), (3, 7112403), (9, 2370801), (19, 1123011), (27, 790267), (57, 374337), (171, 124779), (513, 41593)]