247267647

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2861}}^1$

素因数の和:2981

約数の個数: 40

約数和(自身を含む): 407251152

約数和(自身を除く): 159983505

約数列:

[1, 3, 9, 11, 27, 33, 81, 97, 99, 291, 297, 873, 891, 1067, 2619, 2861, 3201, 7857, 8583, 9603, 25749, 28809, 31471, 77247, 86427, 94413, 231741, 277517, 283239, 832551, 849717, 2497653, 2549151, 3052687, 7492959, 9158061, 22478877, 27474183, 82422549, 247267647]

約数ペア:

[(1, 247267647), (3, 82422549), (9, 27474183), (11, 22478877), (27, 9158061), (33, 7492959), (81, 3052687), (97, 2549151), (99, 2497653), (291, 849717), (297, 832551), (873, 283239), (891, 277517), (1067, 231741), (2619, 94413), (2861, 86427), (3201, 77247), (7857, 31471), (8583, 28809), (9603, 25749)]