278947863

素因数分解:

$3^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{1201}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 408401136

約数和(自身を除く): 129453273

約数列:

[1, 3, 9, 131, 197, 393, 591, 1179, 1201, 1773, 3603, 10809, 25807, 77421, 157331, 232263, 236597, 471993, 709791, 1415979, 2129373, 30994207, 92982621, 278947863]

約数ペア:

[(1, 278947863), (3, 92982621), (9, 30994207), (131, 2129373), (197, 1415979), (393, 709791), (591, 471993), (1179, 236597), (1201, 232263), (1773, 157331), (3603, 77421), (10809, 25807)]