18197858

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 34528320

約数和(自身を除く): 16330462

約数列:

[1, 2, 7, 14, 19, 37, 38, 43, 74, 86, 133, 259, 266, 301, 518, 602, 703, 817, 1406, 1591, 1634, 1849, 3182, 3698, 4921, 5719, 9842, 11137, 11438, 12943, 22274, 25886, 30229, 35131, 60458, 68413, 70262, 136826, 211603, 245917, 423206, 478891, 491834, 957782, 1299847, 2599694, 9098929, 18197858]

約数ペア:

[(1, 18197858), (2, 9098929), (7, 2599694), (14, 1299847), (19, 957782), (37, 491834), (38, 478891), (43, 423206), (74, 245917), (86, 211603), (133, 136826), (259, 70262), (266, 68413), (301, 60458), (518, 35131), (602, 30229), (703, 25886), (817, 22274), (1406, 12943), (1591, 11438), (1634, 11137), (1849, 9842), (3182, 5719), (3698, 4921)]