18666669

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13267}}^1$

素因数の和:13344

約数の個数: 16

約数和(自身を含む): 28871168

約数和(自身を除く): 10204499

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 13267, 39801, 92869, 278607, 888889, 2666667, 6222223, 18666669]

約数ペア:

[(1, 18666669), (3, 6222223), (7, 2666667), (21, 888889), (67, 278607), (201, 92869), (469, 39801), (1407, 13267)]