207915281

素因数分解:

$7^3\times {\mathrm{79}}^1\times {\mathrm{7673}}^1$

素因数の和:7773

約数の個数: 16

約数和(自身を含む): 245568000

約数和(自身を除く): 37652719

約数列:

[1, 7, 49, 79, 343, 553, 3871, 7673, 27097, 53711, 375977, 606167, 2631839, 4243169, 29702183, 207915281]

約数ペア:

[(1, 207915281), (7, 29702183), (49, 4243169), (79, 2631839), (343, 606167), (553, 375977), (3871, 53711), (7673, 27097)]