17801901

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2143}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 28094976

約数和(自身を除く): 10293075

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2143, 2769, 6429, 8307, 19287, 27859, 83577, 152153, 250731, 456459, 1369377, 1977989, 5933967, 17801901]

約数ペア:

[(1, 17801901), (3, 5933967), (9, 1977989), (13, 1369377), (39, 456459), (71, 250731), (117, 152153), (213, 83577), (639, 27859), (923, 19287), (2143, 8307), (2769, 6429)]