21000871386

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{403289}}^1$

素因数の和:403571

約数の個数: 48

約数和(自身を含む): 49827286080

約数和(自身を除く): 28826414694

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 263, 526, 789, 1578, 2367, 2893, 4734, 5786, 8679, 17358, 26037, 52074, 403289, 806578, 1209867, 2419734, 3629601, 4436179, 7259202, 8872358, 13308537, 26617074, 39925611, 79851222, 106065007, 212130014, 318195021, 636390042, 954585063, 1166715077, 1909170126, 2333430154, 3500145231, 7000290462, 10500435693, 21000871386]

約数ペア:

[(1, 21000871386), (2, 10500435693), (3, 7000290462), (6, 3500145231), (9, 2333430154), (11, 1909170126), (18, 1166715077), (22, 954585063), (33, 636390042), (66, 318195021), (99, 212130014), (198, 106065007), (263, 79851222), (526, 39925611), (789, 26617074), (1578, 13308537), (2367, 8872358), (2893, 7259202), (4734, 4436179), (5786, 3629601), (8679, 2419734), (17358, 1209867), (26037, 806578), (52074, 403289)]