21067809

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24469}}^1$

素因数の和:24520

約数の個数: 16

約数和(自身を含む): 32887680

約数和(自身を除く): 11819871

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24469, 73407, 171283, 513849, 1003229, 3009687, 7022603, 21067809]

約数ペア:

[(1, 21067809), (3, 7022603), (7, 3009687), (21, 1003229), (41, 513849), (123, 171283), (287, 73407), (861, 24469)]