21030139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2286

約数の個数: 16

約数和(自身を含む): 24548832

約数和(自身を除く): 3518693

約数列:

[1, 13, 17, 43, 221, 559, 731, 2213, 9503, 28769, 37621, 95159, 489073, 1237067, 1617703, 21030139]

約数ペア:

[(1, 21030139), (13, 1617703), (17, 1237067), (43, 489073), (221, 95159), (559, 37621), (731, 28769), (2213, 9503)]