27980721

素因数分解:

$3^5\times {\mathrm{113}}^1\times {\mathrm{1019}}^1$

素因数の和:1147

約数の個数: 24

約数和(自身を含む): 42325920

約数和(自身を除く): 14345199

約数列:

[1, 3, 9, 27, 81, 113, 243, 339, 1017, 1019, 3051, 3057, 9153, 9171, 27459, 27513, 82539, 115147, 247617, 345441, 1036323, 3108969, 9326907, 27980721]

約数ペア:

[(1, 27980721), (3, 9326907), (9, 3108969), (27, 1036323), (81, 345441), (113, 247617), (243, 115147), (339, 82539), (1017, 27513), (1019, 27459), (3051, 9171), (3057, 9153)]