20189671621

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1\times {\mathrm{110503}}^1$

素因数の和:111160

約数の個数: 16

約数和(自身を含む): 23649624064

約数和(自身を除く): 3459952443

約数列:

[1, 7, 43, 301, 607, 4249, 26101, 110503, 182707, 773521, 4751629, 33261403, 67075321, 469527247, 2884238803, 20189671621]

約数ペア:

[(1, 20189671621), (7, 2884238803), (43, 469527247), (301, 67075321), (607, 33261403), (4249, 4751629), (26101, 773521), (110503, 182707)]