17993241

素因数分解:

$3^2\times 7^2\times {\mathrm{40801}}^1$

素因数の和:40821

約数の個数: 18

約数和(自身を含む): 30234282

約数和(自身を除く): 12241041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 40801, 122403, 285607, 367209, 856821, 1999249, 2570463, 5997747, 17993241]

約数ペア:

[(1, 17993241), (3, 5997747), (7, 2570463), (9, 1999249), (21, 856821), (49, 367209), (63, 285607), (147, 122403), (441, 40801)]