221405751

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 411816960

約数和(自身を除く): 190411209

約数列:

[1, 3, 7, 9, 21, 23, 27, 31, 53, 63, 69, 93, 159, 161, 189, 207, 217, 279, 371, 477, 483, 621, 651, 713, 837, 961, 1113, 1219, 1431, 1449, 1643, 1953, 2139, 2883, 3339, 3657, 4347, 4929, 4991, 5859, 6417, 6727, 8533, 8649, 10017, 10971, 11501, 14787, 14973, 19251, 20181, 22103, 25599, 25947, 32913, 34503, 37789, 44361, 44919, 50933, 60543, 66309, 76797, 103509, 113367, 134757, 152799, 154721, 181629, 198927, 230391, 264523, 310527, 340101, 356531, 458397, 464163, 596781, 793569, 1020303, 1069593, 1171459, 1375191, 1392489, 2380707, 3208779, 3514377, 4177467, 7142121, 8200213, 9626337, 10543131, 24600639, 31629393, 73801917, 221405751]

約数ペア:

[(1, 221405751), (3, 73801917), (7, 31629393), (9, 24600639), (21, 10543131), (23, 9626337), (27, 8200213), (31, 7142121), (53, 4177467), (63, 3514377), (69, 3208779), (93, 2380707), (159, 1392489), (161, 1375191), (189, 1171459), (207, 1069593), (217, 1020303), (279, 793569), (371, 596781), (477, 464163), (483, 458397), (621, 356531), (651, 340101), (713, 310527), (837, 264523), (961, 230391), (1113, 198927), (1219, 181629), (1431, 154721), (1449, 152799), (1643, 134757), (1953, 113367), (2139, 103509), (2883, 76797), (3339, 66309), (3657, 60543), (4347, 50933), (4929, 44919), (4991, 44361), (5859, 37789), (6417, 34503), (6727, 32913), (8533, 25947), (8649, 25599), (10017, 22103), (10971, 20181), (11501, 19251), (14787, 14973)]