21478974

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{325439}}^1$

素因数の和:325455

約数の個数: 16

約数和(自身を含む): 46863360

約数和(自身を除く): 25384386

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 325439, 650878, 976317, 1952634, 3579829, 7159658, 10739487, 21478974]

約数ペア:

[(1, 21478974), (2, 10739487), (3, 7159658), (6, 3579829), (11, 1952634), (22, 976317), (33, 650878), (66, 325439)]