663993

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 1104480

約数和(自身を除く): 440487

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 353, 627, 1059, 1881, 3177, 3883, 6707, 11649, 20121, 34947, 60363, 73777, 221331, 663993]

約数ペア:

[(1, 663993), (3, 221331), (9, 73777), (11, 60363), (19, 34947), (33, 20121), (57, 11649), (99, 6707), (171, 3883), (209, 3177), (353, 1881), (627, 1059)]