21001307

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1039}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 2585893

約数列:

[1, 17, 29, 41, 493, 697, 1039, 1189, 17663, 20213, 30131, 42599, 512227, 724183, 1235371, 21001307]

約数ペア:

[(1, 21001307), (17, 1235371), (29, 724183), (41, 512227), (493, 42599), (697, 30131), (1039, 20213), (1189, 17663)]