218518069

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3643}}^1$

素因数の和:3721

約数の個数: 32

約数和(自身を含む): 293852160

約数和(自身を除く): 75334091

約数列:

[1, 7, 11, 19, 41, 77, 133, 209, 287, 451, 779, 1463, 3157, 3643, 5453, 8569, 25501, 40073, 59983, 69217, 149363, 280511, 484519, 761387, 1045541, 1642993, 2837897, 5329709, 11500951, 19865279, 31216867, 218518069]

約数ペア:

[(1, 218518069), (7, 31216867), (11, 19865279), (19, 11500951), (41, 5329709), (77, 2837897), (133, 1642993), (209, 1045541), (287, 761387), (451, 484519), (779, 280511), (1463, 149363), (3157, 69217), (3643, 59983), (5453, 40073), (8569, 25501)]