20855842

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 36748800

約数和(自身を除く): 15892958

約数列:

[1, 2, 7, 14, 79, 109, 158, 173, 218, 346, 553, 763, 1106, 1211, 1526, 2422, 8611, 13667, 17222, 18857, 27334, 37714, 60277, 95669, 120554, 131999, 191338, 263998, 1489703, 2979406, 10427921, 20855842]

約数ペア:

[(1, 20855842), (2, 10427921), (7, 2979406), (14, 1489703), (79, 263998), (109, 191338), (158, 131999), (173, 120554), (218, 95669), (346, 60277), (553, 37714), (763, 27334), (1106, 18857), (1211, 17222), (1526, 13667), (2422, 8611)]