281131921

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{3889}}^1$

素因数の和:4368

約数の個数: 16

約数和(自身を含む): 336096000

約数和(自身を除く): 54964079

約数列:

[1, 7, 23, 161, 449, 3143, 3889, 10327, 27223, 72289, 89447, 626129, 1746161, 12223127, 40161703, 281131921]

約数ペア:

[(1, 281131921), (7, 40161703), (23, 12223127), (161, 1746161), (449, 626129), (3143, 89447), (3889, 72289), (10327, 27223)]