20801961

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 12145239

約数列:

[1, 3, 9, 27, 29, 31, 87, 93, 261, 279, 783, 837, 857, 899, 2571, 2697, 7713, 8091, 23139, 24273, 24853, 26567, 74559, 79701, 223677, 239103, 671031, 717309, 770443, 2311329, 6933987, 20801961]

約数ペア:

[(1, 20801961), (3, 6933987), (9, 2311329), (27, 770443), (29, 717309), (31, 671031), (87, 239103), (93, 223677), (261, 79701), (279, 74559), (783, 26567), (837, 24853), (857, 24273), (899, 23139), (2571, 8091), (2697, 7713)]