217947492

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{123553}}^1$

素因数の和:123577

約数の個数: 54

約数和(自身を含む): 640874598

約数和(自身を除く): 422927106

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 123553, 247106, 370659, 494212, 741318, 864871, 1111977, 1482636, 1729742, 2223954, 2594613, 3459484, 4447908, 5189226, 6054097, 7783839, 10378452, 12108194, 15567678, 18162291, 24216388, 31135356, 36324582, 54486873, 72649164, 108973746, 217947492]

約数ペア:

[(1, 217947492), (2, 108973746), (3, 72649164), (4, 54486873), (6, 36324582), (7, 31135356), (9, 24216388), (12, 18162291), (14, 15567678), (18, 12108194), (21, 10378452), (28, 7783839), (36, 6054097), (42, 5189226), (49, 4447908), (63, 3459484), (84, 2594613), (98, 2223954), (126, 1729742), (147, 1482636), (196, 1111977), (252, 864871), (294, 741318), (441, 494212), (588, 370659), (882, 247106), (1764, 123553)]