19221279

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11887}}^1$

素因数の和:11915

約数の個数: 24

約数和(自身を含む): 32525568

約数和(自身を除く): 13304289

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 11887, 35661, 83209, 130757, 249627, 392271, 582463, 915299, 1747389, 2745897, 6407093, 19221279]

約数ペア:

[(1, 19221279), (3, 6407093), (7, 2745897), (11, 1747389), (21, 915299), (33, 582463), (49, 392271), (77, 249627), (147, 130757), (231, 83209), (539, 35661), (1617, 11887)]