20731935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4201}}^1$

素因数の和:4263

約数の個数: 32

約数和(自身を含む): 38725632

約数和(自身を除く): 17993697

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4201, 4935, 12603, 21005, 29407, 63015, 88221, 147035, 197447, 441105, 592341, 987235, 1382129, 2961705, 4146387, 6910645, 20731935]

約数ペア:

[(1, 20731935), (3, 6910645), (5, 4146387), (7, 2961705), (15, 1382129), (21, 987235), (35, 592341), (47, 441105), (105, 197447), (141, 147035), (235, 88221), (329, 63015), (705, 29407), (987, 21005), (1645, 12603), (4201, 4935)]