19890535

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 8559257

約数列:

[1, 5, 7, 35, 41, 83, 167, 205, 287, 415, 581, 835, 1169, 1435, 2905, 3403, 5845, 6847, 13861, 17015, 23821, 34235, 47929, 69305, 97027, 119105, 239645, 485135, 568301, 2841505, 3978107, 19890535]

約数ペア:

[(1, 19890535), (5, 3978107), (7, 2841505), (35, 568301), (41, 485135), (83, 239645), (167, 119105), (205, 97027), (287, 69305), (415, 47929), (581, 34235), (835, 23821), (1169, 17015), (1435, 13861), (2905, 6847), (3403, 5845)]