20403076407

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{90019}}^1$

素因数の和:90323

約数の個数: 32

約数和(自身を含む): 31940536320

約数和(自身を除く): 11537459913

約数列:

[1, 3, 7, 21, 43, 129, 251, 301, 753, 903, 1757, 5271, 10793, 32379, 75551, 90019, 226653, 270057, 630133, 1890399, 3870817, 11612451, 22594769, 27095719, 67784307, 81287157, 158163383, 474490149, 971575067, 2914725201, 6801025469, 20403076407]

約数ペア:

[(1, 20403076407), (3, 6801025469), (7, 2914725201), (21, 971575067), (43, 474490149), (129, 158163383), (251, 81287157), (301, 67784307), (753, 27095719), (903, 22594769), (1757, 11612451), (5271, 3870817), (10793, 1890399), (32379, 630133), (75551, 270057), (90019, 226653)]