16681119

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 64

約数和(自身を含む): 29568000

約数和(自身を除く): 12886881

約数列:

[1, 3, 7, 13, 21, 29, 39, 43, 49, 87, 91, 129, 147, 203, 273, 301, 343, 377, 559, 609, 637, 903, 1029, 1131, 1247, 1421, 1677, 1911, 2107, 2639, 3741, 3913, 4263, 4459, 6321, 7917, 8729, 9947, 11739, 13377, 14749, 16211, 18473, 26187, 27391, 29841, 44247, 48633, 55419, 61103, 82173, 113477, 129311, 183309, 191737, 340431, 387933, 427721, 575211, 794339, 1283163, 2383017, 5560373, 16681119]

約数ペア:

[(1, 16681119), (3, 5560373), (7, 2383017), (13, 1283163), (21, 794339), (29, 575211), (39, 427721), (43, 387933), (49, 340431), (87, 191737), (91, 183309), (129, 129311), (147, 113477), (203, 82173), (273, 61103), (301, 55419), (343, 48633), (377, 44247), (559, 29841), (609, 27391), (637, 26187), (903, 18473), (1029, 16211), (1131, 14749), (1247, 13377), (1421, 11739), (1677, 9947), (1911, 8729), (2107, 7917), (2639, 6321), (3741, 4459), (3913, 4263)]