18673688

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 20396392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 121, 191, 202, 242, 382, 404, 484, 764, 808, 968, 1111, 1528, 2101, 2222, 4202, 4444, 8404, 8888, 12221, 16808, 19291, 23111, 24442, 38582, 46222, 48884, 77164, 92444, 97768, 154328, 184888, 212201, 424402, 848804, 1697608, 2334211, 4668422, 9336844, 18673688]

約数ペア:

[(1, 18673688), (2, 9336844), (4, 4668422), (8, 2334211), (11, 1697608), (22, 848804), (44, 424402), (88, 212201), (101, 184888), (121, 154328), (191, 97768), (202, 92444), (242, 77164), (382, 48884), (404, 46222), (484, 38582), (764, 24442), (808, 23111), (968, 19291), (1111, 16808), (1528, 12221), (2101, 8888), (2222, 8404), (4202, 4444)]