1257921

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 2131584

約数和(自身を除く): 873663

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 487, 861, 1461, 2583, 3409, 4383, 10227, 19967, 30681, 59901, 139769, 179703, 419307, 1257921]

約数ペア:

[(1, 1257921), (3, 419307), (7, 179703), (9, 139769), (21, 59901), (41, 30681), (63, 19967), (123, 10227), (287, 4383), (369, 3409), (487, 2583), (861, 1461)]