20828222709

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1\times {\mathrm{32987}}^1$

素因数の和:33385

約数の個数: 32

約数和(自身を含む): 32149840896

約数和(自身を除く): 11321618187

約数列:

[1, 3, 7, 21, 107, 281, 321, 749, 843, 1967, 2247, 5901, 30067, 32987, 90201, 98961, 210469, 230909, 631407, 692727, 3529609, 9269347, 10588827, 24707263, 27808041, 64885429, 74121789, 194656287, 991820129, 2975460387, 6942740903, 20828222709]

約数ペア:

[(1, 20828222709), (3, 6942740903), (7, 2975460387), (21, 991820129), (107, 194656287), (281, 74121789), (321, 64885429), (749, 27808041), (843, 24707263), (1967, 10588827), (2247, 9269347), (5901, 3529609), (30067, 692727), (32987, 631407), (90201, 230909), (98961, 210469)]