21493767

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1190

約数の個数: 16

約数和(自身を含む): 29376000

約数和(自身を除く): 7882233

約数列:

[1, 3, 79, 89, 237, 267, 1019, 3057, 7031, 21093, 80501, 90691, 241503, 272073, 7164589, 21493767]

約数ペア:

[(1, 21493767), (3, 7164589), (79, 272073), (89, 241503), (237, 90691), (267, 80501), (1019, 21093), (3057, 7031)]