20971135

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 25689312

約数和(自身を除く): 4718177

約数列:

[1, 5, 101, 131, 317, 505, 655, 1585, 13231, 32017, 41527, 66155, 160085, 207635, 4194227, 20971135]

約数ペア:

[(1, 20971135), (5, 4194227), (101, 207635), (131, 160085), (317, 66155), (505, 41527), (655, 32017), (1585, 13231)]