19669237

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 24779040

約数和(自身を除く): 5109803

約数列:

[1, 7, 19, 37, 49, 133, 259, 571, 703, 931, 1813, 3997, 4921, 10849, 21127, 27979, 34447, 75943, 147889, 401413, 531601, 1035223, 2809891, 19669237]

約数ペア:

[(1, 19669237), (7, 2809891), (19, 1035223), (37, 531601), (49, 401413), (133, 147889), (259, 75943), (571, 34447), (703, 27979), (931, 21127), (1813, 10849), (3997, 4921)]