20651176

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1$

素因数の和:1538

約数の個数: 64

約数和(自身を含む): 50198400

約数和(自身を除く): 29547224

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1493, 1729, 1976, 2986, 3458, 5972, 6916, 10451, 11944, 13832, 19409, 20902, 28367, 38818, 41804, 56734, 77636, 83608, 113468, 135863, 155272, 198569, 226936, 271726, 368771, 397138, 543452, 737542, 794276, 1086904, 1475084, 1588552, 2581397, 2950168, 5162794, 10325588, 20651176]

約数ペア:

[(1, 20651176), (2, 10325588), (4, 5162794), (7, 2950168), (8, 2581397), (13, 1588552), (14, 1475084), (19, 1086904), (26, 794276), (28, 737542), (38, 543452), (52, 397138), (56, 368771), (76, 271726), (91, 226936), (104, 198569), (133, 155272), (152, 135863), (182, 113468), (247, 83608), (266, 77636), (364, 56734), (494, 41804), (532, 38818), (728, 28367), (988, 20902), (1064, 19409), (1493, 13832), (1729, 11944), (1976, 10451), (2986, 6916), (3458, 5972)]