20277999

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3461}}^1$

素因数の和:3508

約数の個数: 32

約数和(自身を含む): 35450880

約数和(自身を除く): 15172881

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3461, 5859, 10383, 24227, 31149, 72681, 93447, 107291, 218043, 321873, 654129, 751037, 965619, 2253111, 2896857, 6759333, 20277999]

約数ペア:

[(1, 20277999), (3, 6759333), (7, 2896857), (9, 2253111), (21, 965619), (27, 751037), (31, 654129), (63, 321873), (93, 218043), (189, 107291), (217, 93447), (279, 72681), (651, 31149), (837, 24227), (1953, 10383), (3461, 5859)]