21047377

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{727}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 24216192

約数和(自身を除く): 3168815

約数列:

[1, 13, 17, 131, 221, 727, 1703, 2227, 9451, 12359, 28951, 95237, 160667, 1238081, 1619029, 21047377]

約数ペア:

[(1, 21047377), (13, 1619029), (17, 1238081), (131, 160667), (221, 95237), (727, 28951), (1703, 12359), (2227, 9451)]