285440281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{57191}}^1$

素因数の和:57252

約数の個数: 16

約数和(自身を含む): 351387648

約数和(自身を除く): 65947367

約数列:

[1, 7, 23, 31, 161, 217, 713, 4991, 57191, 400337, 1315393, 1772921, 9207751, 12410447, 40777183, 285440281]

約数ペア:

[(1, 285440281), (7, 40777183), (23, 12410447), (31, 9207751), (161, 1772921), (217, 1315393), (713, 400337), (4991, 57191)]