19806605

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 29611008

約数和(自身を除く): 9804403

約数列:

[1, 5, 7, 13, 35, 65, 91, 101, 431, 455, 505, 707, 1313, 2155, 3017, 3535, 5603, 6565, 9191, 15085, 28015, 39221, 43531, 45955, 196105, 217655, 304717, 565903, 1523585, 2829515, 3961321, 19806605]

約数ペア:

[(1, 19806605), (5, 3961321), (7, 2829515), (13, 1523585), (35, 565903), (65, 304717), (91, 217655), (101, 196105), (431, 45955), (455, 43531), (505, 39221), (707, 28015), (1313, 15085), (2155, 9191), (3017, 6565), (3535, 5603)]