81583971

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{17903}}^1$

素因数の和:17951

約数の個数: 24

約数和(自身を含む): 130627584

約数和(自身を除く): 49043613

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 17903, 53709, 125321, 375963, 554993, 877247, 1664979, 2631741, 3884951, 11654853, 27194657, 81583971]

約数ペア:

[(1, 81583971), (3, 27194657), (7, 11654853), (21, 3884951), (31, 2631741), (49, 1664979), (93, 877247), (147, 554993), (217, 375963), (651, 125321), (1519, 53709), (4557, 17903)]