199897731

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{28439}}^1$

素因数の和:28527

約数の個数: 24

約数和(自身を含む): 319438080

約数和(自身を除く): 119540349

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 7029, 28439, 85317, 255951, 312829, 938487, 2019169, 2815461, 6057507, 18172521, 22210859, 66632577, 199897731]

約数ペア:

[(1, 199897731), (3, 66632577), (9, 22210859), (11, 18172521), (33, 6057507), (71, 2815461), (99, 2019169), (213, 938487), (639, 312829), (781, 255951), (2343, 85317), (7029, 28439)]