16988643

素因数分解:

$3^3\times 7^2\times {\mathrm{12841}}^1$

素因数の和:12864

約数の個数: 24

約数和(自身を含む): 29279760

約数和(自身を除く): 12291117

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 12841, 38523, 89887, 115569, 269661, 346707, 629209, 808983, 1887627, 2426949, 5662881, 16988643]

約数ペア:

[(1, 16988643), (3, 5662881), (7, 2426949), (9, 1887627), (21, 808983), (27, 629209), (49, 346707), (63, 269661), (147, 115569), (189, 89887), (441, 38523), (1323, 12841)]