18861921

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12401}}^1$

素因数の和:12433

約数の個数: 18

約数和(自身を含む): 29504358

約数和(自身を除く): 10642437

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12401, 37203, 111609, 161213, 483639, 1450917, 2095769, 6287307, 18861921]

約数ペア:

[(1, 18861921), (3, 6287307), (9, 2095769), (13, 1450917), (39, 483639), (117, 161213), (169, 111609), (507, 37203), (1521, 12401)]