18976743

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4001}}^1$

素因数の和:4055

約数の個数: 24

約数和(自身を含む): 29966976

約数和(自身を除く): 10990233

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4001, 4743, 12003, 36009, 68017, 124031, 204051, 372093, 612153, 1116279, 2108527, 6325581, 18976743]

約数ペア:

[(1, 18976743), (3, 6325581), (9, 2108527), (17, 1116279), (31, 612153), (51, 372093), (93, 204051), (153, 124031), (279, 68017), (527, 36009), (1581, 12003), (4001, 4743)]