18968733

素因数分解:

$3^2\times 7^2\times {\mathrm{43013}}^1$

素因数の和:43033

約数の個数: 18

約数和(自身を含む): 31873374

約数和(自身を除く): 12904641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43013, 129039, 301091, 387117, 903273, 2107637, 2709819, 6322911, 18968733]

約数ペア:

[(1, 18968733), (3, 6322911), (7, 2709819), (9, 2107637), (21, 903273), (49, 387117), (63, 301091), (147, 129039), (441, 43013)]