20173336211

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:317

約数の個数: 72

約数和(自身を含む): 25407043200

約数和(自身を除く): 5233706989

約数列:

[1, 7, 31, 37, 49, 89, 109, 217, 259, 623, 763, 1147, 1369, 1519, 1813, 2759, 3293, 3379, 4033, 4361, 5341, 8029, 9583, 9701, 19313, 23051, 23653, 28231, 42439, 56203, 67081, 67907, 102083, 121841, 125023, 135191, 149221, 161357, 165571, 197617, 297073, 300731, 358937, 475349, 714581, 852887, 875161, 1044547, 2079511, 2105117, 2512559, 3777071, 4625851, 5002067, 5970209, 6126127, 7311829, 11127047, 13280669, 14735819, 17587913, 26439497, 32380957, 77889329, 92964683, 185076479, 226666699, 411700739, 545225303, 650752781, 2881905173, 20173336211]

約数ペア:

[(1, 20173336211), (7, 2881905173), (31, 650752781), (37, 545225303), (49, 411700739), (89, 226666699), (109, 185076479), (217, 92964683), (259, 77889329), (623, 32380957), (763, 26439497), (1147, 17587913), (1369, 14735819), (1519, 13280669), (1813, 11127047), (2759, 7311829), (3293, 6126127), (3379, 5970209), (4033, 5002067), (4361, 4625851), (5341, 3777071), (8029, 2512559), (9583, 2105117), (9701, 2079511), (19313, 1044547), (23051, 875161), (23653, 852887), (28231, 714581), (42439, 475349), (56203, 358937), (67081, 300731), (67907, 297073), (102083, 197617), (121841, 165571), (125023, 161357), (135191, 149221)]