18378969

素因数分解:

$3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 10824231

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 337, 343, 371, 1011, 1029, 1113, 2359, 2597, 7077, 7791, 16513, 17861, 18179, 49539, 53583, 54537, 115591, 125027, 346773, 375081, 875189, 2625567, 6126323, 18378969]

約数ペア:

[(1, 18378969), (3, 6126323), (7, 2625567), (21, 875189), (49, 375081), (53, 346773), (147, 125027), (159, 115591), (337, 54537), (343, 53583), (371, 49539), (1011, 18179), (1029, 17861), (1113, 16513), (2359, 7791), (2597, 7077)]