20081831

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 6460249

約数列:

[1, 7, 11, 31, 47, 77, 179, 217, 329, 341, 517, 1253, 1457, 1969, 2387, 3619, 5549, 8413, 10199, 13783, 16027, 38843, 58891, 61039, 92543, 112189, 260803, 427273, 647801, 1825621, 2868833, 20081831]

約数ペア:

[(1, 20081831), (7, 2868833), (11, 1825621), (31, 647801), (47, 427273), (77, 260803), (179, 112189), (217, 92543), (329, 61039), (341, 58891), (517, 38843), (1253, 16027), (1457, 13783), (1969, 10199), (2387, 8413), (3619, 5549)]