21269857

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{2003}}^1$

素因数の和:2088

約数の個数: 16

約数和(自身を含む): 25587072

約数和(自身を除く): 4317215

約数列:

[1, 7, 37, 41, 259, 287, 1517, 2003, 10619, 14021, 74111, 82123, 518777, 574861, 3038551, 21269857]

約数ペア:

[(1, 21269857), (7, 3038551), (37, 574861), (41, 518777), (259, 82123), (287, 74111), (1517, 14021), (2003, 10619)]