20088729

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 12110823

約数列:

[1, 3, 9, 23, 27, 41, 69, 81, 123, 207, 263, 369, 621, 789, 943, 1107, 1863, 2367, 2829, 3321, 6049, 7101, 8487, 10783, 18147, 21303, 25461, 32349, 54441, 76383, 97047, 163323, 248009, 291141, 489969, 744027, 873423, 2232081, 6696243, 20088729]

約数ペア:

[(1, 20088729), (3, 6696243), (9, 2232081), (23, 873423), (27, 744027), (41, 489969), (69, 291141), (81, 248009), (123, 163323), (207, 97047), (263, 76383), (369, 54441), (621, 32349), (789, 25461), (943, 21303), (1107, 18147), (1863, 10783), (2367, 8487), (2829, 7101), (3321, 6049)]