17921997

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 27418560

約数和(自身を除く): 9496563

約数列:

[1, 3, 9, 19, 57, 171, 311, 337, 933, 1011, 2799, 3033, 5909, 6403, 17727, 19209, 53181, 57627, 104807, 314421, 943263, 1991333, 5973999, 17921997]

約数ペア:

[(1, 17921997), (3, 5973999), (9, 1991333), (19, 943263), (57, 314421), (171, 104807), (311, 57627), (337, 53181), (933, 19209), (1011, 17727), (2799, 6403), (3033, 5909)]