20958511

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1637}}^1$

素因数の和:1734

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4201169

約数列:

[1, 7, 31, 59, 217, 413, 1637, 1829, 11459, 12803, 50747, 96583, 355229, 676081, 2994073, 20958511]

約数ペア:

[(1, 20958511), (7, 2994073), (31, 676081), (59, 355229), (217, 96583), (413, 50747), (1637, 12803), (1829, 11459)]