20565856773

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:976

約数の個数: 128

約数和(自身を含む): 38820372480

約数和(自身を除く): 18254515707

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 61, 63, 77, 99, 183, 189, 231, 257, 297, 427, 549, 631, 671, 693, 771, 1281, 1647, 1799, 1893, 2013, 2079, 2313, 2827, 3843, 4417, 4697, 5397, 5679, 6039, 6939, 6941, 8481, 11529, 13251, 14091, 15677, 16191, 17037, 18117, 19789, 20823, 25443, 38491, 39753, 42273, 47031, 48573, 48587, 59367, 62469, 76329, 109739, 115473, 119259, 126819, 141093, 145761, 162167, 172447, 178101, 187407, 269437, 329217, 346419, 423279, 423401, 437283, 486501, 517341, 534303, 808311, 987651, 1039257, 1135169, 1207129, 1270203, 1311849, 1459503, 1552023, 1783837, 2424933, 2962953, 2963807, 3405507, 3621387, 3810609, 4378509, 4656069, 5351511, 7274799, 8891421, 9892187, 10216521, 10864161, 11431827, 12486859, 16054533, 26674263, 29676561, 30649563, 32592483, 37460577, 48163599, 69245309, 80022789, 89029683, 108814057, 112381731, 207735927, 267089049, 326442171, 337145193, 623207781, 761698399, 979326513, 1869623343, 2285095197, 2937979539, 6855285591, 20565856773]

約数ペア:

[(1, 20565856773), (3, 6855285591), (7, 2937979539), (9, 2285095197), (11, 1869623343), (21, 979326513), (27, 761698399), (33, 623207781), (61, 337145193), (63, 326442171), (77, 267089049), (99, 207735927), (183, 112381731), (189, 108814057), (231, 89029683), (257, 80022789), (297, 69245309), (427, 48163599), (549, 37460577), (631, 32592483), (671, 30649563), (693, 29676561), (771, 26674263), (1281, 16054533), (1647, 12486859), (1799, 11431827), (1893, 10864161), (2013, 10216521), (2079, 9892187), (2313, 8891421), (2827, 7274799), (3843, 5351511), (4417, 4656069), (4697, 4378509), (5397, 3810609), (5679, 3621387), (6039, 3405507), (6939, 2963807), (6941, 2962953), (8481, 2424933), (11529, 1783837), (13251, 1552023), (14091, 1459503), (15677, 1311849), (16191, 1270203), (17037, 1207129), (18117, 1135169), (19789, 1039257), (20823, 987651), (25443, 808311), (38491, 534303), (39753, 517341), (42273, 486501), (47031, 437283), (48573, 423401), (48587, 423279), (59367, 346419), (62469, 329217), (76329, 269437), (109739, 187407), (115473, 178101), (119259, 172447), (126819, 162167), (141093, 145761)]