20476071

素因数分解:

$3^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 39494400

約数和(自身を除く): 19018329

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 67, 77, 81, 99, 147, 189, 201, 231, 297, 343, 441, 469, 539, 567, 603, 693, 737, 891, 1029, 1323, 1407, 1617, 1809, 2079, 2211, 3087, 3283, 3773, 3969, 4221, 4851, 5159, 5427, 6237, 6633, 9261, 9849, 11319, 12663, 14553, 15477, 19899, 22981, 27783, 29547, 33957, 36113, 37989, 43659, 46431, 59697, 68943, 88641, 101871, 108339, 139293, 206829, 252791, 265923, 305613, 325017, 417879, 620487, 758373, 975051, 1861461, 2275119, 2925153, 6825357, 20476071]

約数ペア:

[(1, 20476071), (3, 6825357), (7, 2925153), (9, 2275119), (11, 1861461), (21, 975051), (27, 758373), (33, 620487), (49, 417879), (63, 325017), (67, 305613), (77, 265923), (81, 252791), (99, 206829), (147, 139293), (189, 108339), (201, 101871), (231, 88641), (297, 68943), (343, 59697), (441, 46431), (469, 43659), (539, 37989), (567, 36113), (603, 33957), (693, 29547), (737, 27783), (891, 22981), (1029, 19899), (1323, 15477), (1407, 14553), (1617, 12663), (1809, 11319), (2079, 9849), (2211, 9261), (3087, 6633), (3283, 6237), (3773, 5427), (3969, 5159), (4221, 4851)]