20965119

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16921}}^1$

素因数の和:16990

約数の個数: 16

約数和(自身を含む): 32490240

約数和(自身を除く): 11525121

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16921, 50763, 118447, 355341, 998339, 2995017, 6988373, 20965119]

約数ペア:

[(1, 20965119), (3, 6988373), (7, 2995017), (21, 998339), (59, 355341), (177, 118447), (413, 50763), (1239, 16921)]