19976979

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5003}}^1$

素因数の和:5039

約数の個数: 16

約数和(自身を含む): 29303424

約数和(自身を除く): 9326445

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5003, 15009, 55033, 165099, 605363, 1816089, 6658993, 19976979]

約数ペア:

[(1, 19976979), (3, 6658993), (11, 1816089), (33, 605363), (121, 165099), (363, 55033), (1331, 15009), (3993, 5003)]