19856095

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 28377216

約数和(自身を除く): 8521121

約数列:

[1, 5, 7, 35, 41, 101, 137, 205, 287, 505, 685, 707, 959, 1435, 3535, 4141, 4795, 5617, 13837, 20705, 28085, 28987, 39319, 69185, 96859, 144935, 196595, 484295, 567317, 2836585, 3971219, 19856095]

約数ペア:

[(1, 19856095), (5, 3971219), (7, 2836585), (35, 567317), (41, 484295), (101, 196595), (137, 144935), (205, 96859), (287, 69185), (505, 39319), (685, 28987), (707, 28085), (959, 20705), (1435, 13837), (3535, 5617), (4141, 4795)]