21269589

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12161}}^1$

素因数の和:12228

約数の個数: 16

約数和(自身を含む): 31523904

約数和(自身を除く): 10254315

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12161, 36483, 133771, 401313, 644533, 1933599, 7089863, 21269589]

約数ペア:

[(1, 21269589), (3, 7089863), (11, 1933599), (33, 644533), (53, 401313), (159, 133771), (583, 36483), (1749, 12161)]