21808974

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{330439}}^1$

素因数の和:330455

約数の個数: 16

約数和(自身を含む): 47583360

約数和(自身を除く): 25774386

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 330439, 660878, 991317, 1982634, 3634829, 7269658, 10904487, 21808974]

約数ペア:

[(1, 21808974), (2, 10904487), (3, 7269658), (6, 3634829), (11, 1982634), (22, 991317), (33, 660878), (66, 330439)]