857138821

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{227177}}^1$

素因数の和:227209

約数の個数: 16

約数和(自身を含む): 1090454400

約数和(自身を除く): 233315579

約数列:

[1, 7, 11, 49, 77, 343, 539, 3773, 227177, 1590239, 2498947, 11131673, 17492629, 77921711, 122448403, 857138821]

約数ペア:

[(1, 857138821), (7, 122448403), (11, 77921711), (49, 17492629), (77, 11131673), (343, 2498947), (539, 1590239), (3773, 227177)]