16806978

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{13151}}^1$

素因数の和:13230

約数の個数: 24

約数和(自身を含む): 36930816

約数和(自身を除く): 20123838

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 13151, 26302, 39453, 78906, 118359, 236718, 933721, 1867442, 2801163, 5602326, 8403489, 16806978]

約数ペア:

[(1, 16806978), (2, 8403489), (3, 5602326), (6, 2801163), (9, 1867442), (18, 933721), (71, 236718), (142, 118359), (213, 78906), (426, 39453), (639, 26302), (1278, 13151)]