21008039

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4133}}^1$

素因数の和:4186

約数の個数: 16

約数和(自身を含む): 25002432

約数和(自身を除く): 3994393

約数列:

[1, 13, 17, 23, 221, 299, 391, 4133, 5083, 53729, 70261, 95059, 913393, 1235767, 1616003, 21008039]

約数ペア:

[(1, 21008039), (13, 1616003), (17, 1235767), (23, 913393), (221, 95059), (299, 70261), (391, 53729), (4133, 5083)]