20953618

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2129}}^1$

素因数の和:2194

約数の個数: 32

約数和(自身を含む): 38851200

約数和(自身を除く): 17897582

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 2129, 4258, 4921, 9842, 14903, 29806, 40451, 78773, 80902, 157546, 283157, 551411, 566314, 1102822, 1496687, 2993374, 10476809, 20953618]

約数ペア:

[(1, 20953618), (2, 10476809), (7, 2993374), (14, 1496687), (19, 1102822), (37, 566314), (38, 551411), (74, 283157), (133, 157546), (259, 80902), (266, 78773), (518, 40451), (703, 29806), (1406, 14903), (2129, 9842), (4258, 4921)]