20165990499

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39309923}}^1$

素因数の和:39309951

約数の個数: 16

約数和(自身を含む): 31447939200

約数和(自身を除く): 11281948701

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39309923, 117929769, 353789307, 746888537, 1061367921, 2240665611, 6721996833, 20165990499]

約数ペア:

[(1, 20165990499), (3, 6721996833), (9, 2240665611), (19, 1061367921), (27, 746888537), (57, 353789307), (171, 117929769), (513, 39309923)]