20786954

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13427446

約数列:

[1, 2, 17, 34, 71, 79, 109, 142, 158, 218, 1207, 1343, 1853, 2414, 2686, 3706, 5609, 7739, 8611, 11218, 15478, 17222, 95353, 131563, 146387, 190706, 263126, 292774, 611381, 1222762, 10393477, 20786954]

約数ペア:

[(1, 20786954), (2, 10393477), (17, 1222762), (34, 611381), (71, 292774), (79, 263126), (109, 190706), (142, 146387), (158, 131563), (218, 95353), (1207, 17222), (1343, 15478), (1853, 11218), (2414, 8611), (2686, 7739), (3706, 5609)]