21581433

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 32104800

約数和(自身を除く): 10523367

約数列:

[1, 3, 9, 59, 97, 177, 291, 419, 531, 873, 1257, 3771, 5723, 17169, 24721, 40643, 51507, 74163, 121929, 222489, 365787, 2397937, 7193811, 21581433]

約数ペア:

[(1, 21581433), (3, 7193811), (9, 2397937), (59, 365787), (97, 222489), (177, 121929), (291, 74163), (419, 51507), (531, 40643), (873, 24721), (1257, 17169), (3771, 5723)]