21005514288

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{659}}^1\times {\mathrm{20123}}^1$

素因数の和:20807

約数の個数: 120

約数和(自身を含む): 64230978240

約数和(自身を除く): 43225463952

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 659, 792, 1318, 1584, 1977, 2636, 3954, 5272, 5931, 7249, 7908, 10544, 11862, 14498, 15816, 20123, 21747, 23724, 28996, 31632, 40246, 43494, 47448, 57992, 60369, 65241, 80492, 86988, 94896, 115984, 120738, 130482, 160984, 173976, 181107, 221353, 241476, 260964, 321968, 347952, 362214, 442706, 482952, 521928, 664059, 724428, 885412, 965904, 1043856, 1328118, 1448856, 1770824, 1992177, 2656236, 2897712, 3541648, 3984354, 5312472, 7968708, 10624944, 13261057, 15937416, 26522114, 31874832, 39783171, 53044228, 79566342, 106088456, 119349513, 145871627, 159132684, 212176912, 238699026, 291743254, 318265368, 437614881, 477398052, 583486508, 636530736, 875229762, 954796104, 1166973016, 1312844643, 1750459524, 1909592208, 2333946032, 2625689286, 3500919048, 5251378572, 7001838096, 10502757144, 21005514288]

約数ペア:

[(1, 21005514288), (2, 10502757144), (3, 7001838096), (4, 5251378572), (6, 3500919048), (8, 2625689286), (9, 2333946032), (11, 1909592208), (12, 1750459524), (16, 1312844643), (18, 1166973016), (22, 954796104), (24, 875229762), (33, 636530736), (36, 583486508), (44, 477398052), (48, 437614881), (66, 318265368), (72, 291743254), (88, 238699026), (99, 212176912), (132, 159132684), (144, 145871627), (176, 119349513), (198, 106088456), (264, 79566342), (396, 53044228), (528, 39783171), (659, 31874832), (792, 26522114), (1318, 15937416), (1584, 13261057), (1977, 10624944), (2636, 7968708), (3954, 5312472), (5272, 3984354), (5931, 3541648), (7249, 2897712), (7908, 2656236), (10544, 1992177), (11862, 1770824), (14498, 1448856), (15816, 1328118), (20123, 1043856), (21747, 965904), (23724, 885412), (28996, 724428), (31632, 664059), (40246, 521928), (43494, 482952), (47448, 442706), (57992, 362214), (60369, 347952), (65241, 321968), (80492, 260964), (86988, 241476), (94896, 221353), (115984, 181107), (120738, 173976), (130482, 160984)]