21061227

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 10664853

約数列:

[1, 3, 11, 33, 71, 89, 101, 213, 267, 303, 781, 979, 1111, 2343, 2937, 3333, 6319, 7171, 8989, 18957, 21513, 26967, 69509, 78881, 98879, 208527, 236643, 296637, 638219, 1914657, 7020409, 21061227]

約数ペア:

[(1, 21061227), (3, 7020409), (11, 1914657), (33, 638219), (71, 296637), (89, 236643), (101, 208527), (213, 98879), (267, 78881), (303, 69509), (781, 26967), (979, 21513), (1111, 18957), (2343, 8989), (2937, 7171), (3333, 6319)]