18638919

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9371}}^1$

素因数の和:9407

約数の個数: 24

約数和(自身を含む): 30702672

約数和(自身を除く): 12063753

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 9371, 28113, 84339, 121823, 159307, 365469, 477921, 1096407, 1433763, 2070991, 6212973, 18638919]

約数ペア:

[(1, 18638919), (3, 6212973), (9, 2070991), (13, 1433763), (17, 1096407), (39, 477921), (51, 365469), (117, 159307), (153, 121823), (221, 84339), (663, 28113), (1989, 9371)]