18930289

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{449}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 22896000

約数和(自身を除く): 3965711

約数列:

[1, 7, 19, 133, 317, 449, 2219, 3143, 6023, 8531, 42161, 59717, 142333, 996331, 2704327, 18930289]

約数ペア:

[(1, 18930289), (7, 2704327), (19, 996331), (133, 142333), (317, 59717), (449, 42161), (2219, 8531), (3143, 6023)]