21151647

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19423}}^1$

素因数の和:19451

約数の個数: 18

約数和(自身を含む): 33584096

約数和(自身を除く): 12432449

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19423, 58269, 174807, 213653, 640959, 1922877, 2350183, 7050549, 21151647]

約数ペア:

[(1, 21151647), (3, 7050549), (9, 2350183), (11, 1922877), (33, 640959), (99, 213653), (121, 174807), (363, 58269), (1089, 19423)]