20848149

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17417}}^1$

素因数の和:17449

約数の個数: 24

約数和(自身を含む): 36229440

約数和(自身を除く): 15381291

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17417, 52251, 121919, 156753, 330923, 365757, 992769, 1097271, 2316461, 2978307, 6949383, 20848149]

約数ペア:

[(1, 20848149), (3, 6949383), (7, 2978307), (9, 2316461), (19, 1097271), (21, 992769), (57, 365757), (63, 330923), (133, 156753), (171, 121919), (399, 52251), (1197, 17417)]