21401861

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{857}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 24648624

約数和(自身を除く): 3246763

約数列:

[1, 13, 17, 113, 221, 857, 1469, 1921, 11141, 14569, 24973, 96841, 189397, 1258933, 1646297, 21401861]

約数ペア:

[(1, 21401861), (13, 1646297), (17, 1258933), (113, 189397), (221, 96841), (857, 24973), (1469, 14569), (1921, 11141)]