78972271

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 97182720

約数和(自身を除く): 18210449

約数列:

[1, 7, 23, 49, 79, 161, 553, 887, 1127, 1817, 3871, 6209, 12719, 20401, 43463, 70073, 89033, 142807, 490511, 999649, 1611679, 3433577, 11281753, 78972271]

約数ペア:

[(1, 78972271), (7, 11281753), (23, 3433577), (49, 1611679), (79, 999649), (161, 490511), (553, 142807), (887, 89033), (1127, 70073), (1817, 43463), (3871, 20401), (6209, 12719)]