18867368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4219}}^1$

素因数の和:4281

約数の個数: 32

約数和(自身を含む): 38992800

約数和(自身を除く): 20125432

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4219, 4472, 8438, 16876, 33752, 54847, 109694, 181417, 219388, 362834, 438776, 725668, 1451336, 2358421, 4716842, 9433684, 18867368]

約数ペア:

[(1, 18867368), (2, 9433684), (4, 4716842), (8, 2358421), (13, 1451336), (26, 725668), (43, 438776), (52, 362834), (86, 219388), (104, 181417), (172, 109694), (344, 54847), (559, 33752), (1118, 16876), (2236, 8438), (4219, 4472)]