21330009

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 31783752

約数和(自身を除く): 10453743

約数列:

[1, 3, 9, 53, 97, 159, 291, 461, 477, 873, 1383, 4149, 5141, 15423, 24433, 44717, 46269, 73299, 134151, 219897, 402453, 2370001, 7110003, 21330009]

約数ペア:

[(1, 21330009), (3, 7110003), (9, 2370001), (53, 402453), (97, 219897), (159, 134151), (291, 73299), (461, 46269), (477, 44717), (873, 24433), (1383, 15423), (4149, 5141)]