217244511

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1553}}^1$

素因数の和:1733

約数の個数: 40

約数和(自身を含む): 356512464

約数和(自身を除く): 139267953

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 157, 297, 471, 891, 1413, 1553, 1727, 4239, 4659, 5181, 12717, 13977, 15543, 17083, 41931, 46629, 51249, 125793, 139887, 153747, 243821, 461241, 731463, 1383723, 2194389, 2682031, 6583167, 8046093, 19749501, 24138279, 72414837, 217244511]

約数ペア:

[(1, 217244511), (3, 72414837), (9, 24138279), (11, 19749501), (27, 8046093), (33, 6583167), (81, 2682031), (99, 2194389), (157, 1383723), (297, 731463), (471, 461241), (891, 243821), (1413, 153747), (1553, 139887), (1727, 125793), (4239, 51249), (4659, 46629), (5181, 41931), (12717, 17083), (13977, 15543)]