20582681

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 26188800

約数和(自身を除く): 5606119

約数列:

[1, 7, 19, 43, 59, 61, 133, 301, 413, 427, 817, 1121, 1159, 2537, 2623, 3599, 5719, 7847, 8113, 17759, 18361, 25193, 48203, 49837, 68381, 154757, 337421, 348859, 478667, 1083299, 2940383, 20582681]

約数ペア:

[(1, 20582681), (7, 2940383), (19, 1083299), (43, 478667), (59, 348859), (61, 337421), (133, 154757), (301, 68381), (413, 49837), (427, 48203), (817, 25193), (1121, 18361), (1159, 17759), (2537, 8113), (2623, 7847), (3599, 5719)]