20609127

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 19203993

約数列:

[1, 3, 7, 9, 11, 21, 23, 27, 33, 63, 69, 77, 99, 161, 189, 207, 231, 253, 297, 431, 483, 621, 693, 759, 1293, 1449, 1771, 2079, 2277, 3017, 3879, 4347, 4741, 5313, 6831, 9051, 9913, 11637, 14223, 15939, 27153, 29739, 33187, 42669, 47817, 69391, 81459, 89217, 99561, 109043, 128007, 208173, 267651, 298683, 327129, 624519, 763301, 896049, 981387, 1873557, 2289903, 2944161, 6869709, 20609127]

約数ペア:

[(1, 20609127), (3, 6869709), (7, 2944161), (9, 2289903), (11, 1873557), (21, 981387), (23, 896049), (27, 763301), (33, 624519), (63, 327129), (69, 298683), (77, 267651), (99, 208173), (161, 128007), (189, 109043), (207, 99561), (231, 89217), (253, 81459), (297, 69391), (431, 47817), (483, 42669), (621, 33187), (693, 29739), (759, 27153), (1293, 15939), (1449, 14223), (1771, 11637), (2079, 9913), (2277, 9051), (3017, 6831), (3879, 5313), (4347, 4741)]