20045949

素因数分解:

$3^1\times 7^4\times {\mathrm{11}}^2\times {\mathrm{23}}^1$

素因数の和:76

約数の個数: 60

約数和(自身を含む): 35763168

約数和(自身を除く): 15717219

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 69, 77, 121, 147, 161, 231, 253, 343, 363, 483, 539, 759, 847, 1029, 1127, 1617, 1771, 2401, 2541, 2783, 3381, 3773, 5313, 5929, 7203, 7889, 8349, 11319, 12397, 17787, 19481, 23667, 26411, 37191, 41503, 55223, 58443, 79233, 86779, 124509, 136367, 165669, 260337, 290521, 409101, 607453, 871563, 954569, 1822359, 2863707, 6681983, 20045949]

約数ペア:

[(1, 20045949), (3, 6681983), (7, 2863707), (11, 1822359), (21, 954569), (23, 871563), (33, 607453), (49, 409101), (69, 290521), (77, 260337), (121, 165669), (147, 136367), (161, 124509), (231, 86779), (253, 79233), (343, 58443), (363, 55223), (483, 41503), (539, 37191), (759, 26411), (847, 23667), (1029, 19481), (1127, 17787), (1617, 12397), (1771, 11319), (2401, 8349), (2541, 7889), (2783, 7203), (3381, 5929), (3773, 5313)]