21963987

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{19841}}^1$

素因数の和:19891

約数の個数: 16

約数和(自身を含む): 33334560

約数和(自身を除く): 11370573

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 19841, 59523, 178569, 535707, 813481, 2440443, 7321329, 21963987]

約数ペア:

[(1, 21963987), (3, 7321329), (9, 2440443), (27, 813481), (41, 535707), (123, 178569), (369, 59523), (1107, 19841)]