20420043

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1217}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 13255221

約数列:

[1, 3, 7, 17, 21, 47, 51, 119, 141, 329, 357, 799, 987, 1217, 2397, 3651, 5593, 8519, 16779, 20689, 25557, 57199, 62067, 144823, 171597, 400393, 434469, 972383, 1201179, 2917149, 6806681, 20420043]

約数ペア:

[(1, 20420043), (3, 6806681), (7, 2917149), (17, 1201179), (21, 972383), (47, 434469), (51, 400393), (119, 171597), (141, 144823), (329, 62067), (357, 57199), (799, 25557), (987, 20689), (1217, 16779), (2397, 8519), (3651, 5593)]