21131851

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{967}}^1$

素因数の和:1062

約数の個数: 12

約数和(自身を含む): 23350096

約数和(自身を除く): 2218245

約数列:

[1, 13, 41, 533, 967, 1681, 12571, 21853, 39647, 515411, 1625527, 21131851]

約数ペア:

[(1, 21131851), (13, 1625527), (41, 515411), (533, 39647), (967, 21853), (1681, 12571)]