981321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 1444608

約数和(自身を除く): 463287

約数列:

[1, 3, 11, 33, 131, 227, 393, 681, 1441, 2497, 4323, 7491, 29737, 89211, 327107, 981321]

約数ペア:

[(1, 981321), (3, 327107), (11, 89211), (33, 29737), (131, 7491), (227, 4323), (393, 2497), (681, 1441)]