20804658

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:120

約数の個数: 96

約数和(自身を含む): 53514240

約数和(自身を除く): 32709582

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 29, 31, 38, 42, 57, 58, 62, 87, 93, 114, 133, 174, 186, 203, 217, 266, 399, 406, 434, 551, 589, 609, 651, 798, 841, 899, 1102, 1178, 1218, 1302, 1653, 1682, 1767, 1798, 2523, 2697, 3306, 3534, 3857, 4123, 5046, 5394, 5887, 6293, 7714, 8246, 11571, 11774, 12369, 12586, 15979, 17081, 17661, 18879, 23142, 24738, 26071, 31958, 34162, 35322, 37758, 47937, 51243, 52142, 78213, 95874, 102486, 111853, 119567, 156426, 182497, 223706, 239134, 335559, 358701, 364994, 495349, 547491, 671118, 717402, 990698, 1094982, 1486047, 2972094, 3467443, 6934886, 10402329, 20804658]

約数ペア:

[(1, 20804658), (2, 10402329), (3, 6934886), (6, 3467443), (7, 2972094), (14, 1486047), (19, 1094982), (21, 990698), (29, 717402), (31, 671118), (38, 547491), (42, 495349), (57, 364994), (58, 358701), (62, 335559), (87, 239134), (93, 223706), (114, 182497), (133, 156426), (174, 119567), (186, 111853), (203, 102486), (217, 95874), (266, 78213), (399, 52142), (406, 51243), (434, 47937), (551, 37758), (589, 35322), (609, 34162), (651, 31958), (798, 26071), (841, 24738), (899, 23142), (1102, 18879), (1178, 17661), (1218, 17081), (1302, 15979), (1653, 12586), (1682, 12369), (1767, 11774), (1798, 11571), (2523, 8246), (2697, 7714), (3306, 6293), (3534, 5887), (3857, 5394), (4123, 5046)]