21072987

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60037}}^1$

素因数の和:60059

約数の個数: 16

約数和(自身を含む): 33621280

約数和(自身を除く): 12548293

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60037, 180111, 540333, 780481, 1620999, 2341443, 7024329, 21072987]

約数ペア:

[(1, 21072987), (3, 7024329), (9, 2341443), (13, 1620999), (27, 780481), (39, 540333), (117, 180111), (351, 60037)]