19867281

素因数分解:

$3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{3491}}^1$

素因数の和:3772

約数の個数: 16

約数和(自身を含む): 30394368

約数和(自身を除く): 10527087

約数列:

[1, 3, 7, 21, 271, 813, 1897, 3491, 5691, 10473, 24437, 73311, 946061, 2838183, 6622427, 19867281]

約数ペア:

[(1, 19867281), (3, 6622427), (7, 2838183), (21, 946061), (271, 73311), (813, 24437), (1897, 10473), (3491, 5691)]