19746976

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 20702048

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 113, 127, 172, 226, 254, 344, 452, 508, 688, 904, 1016, 1376, 1808, 2032, 3616, 4064, 4859, 5461, 9718, 10922, 14351, 19436, 21844, 28702, 38872, 43688, 57404, 77744, 87376, 114808, 155488, 174752, 229616, 459232, 617093, 1234186, 2468372, 4936744, 9873488, 19746976]

約数ペア:

[(1, 19746976), (2, 9873488), (4, 4936744), (8, 2468372), (16, 1234186), (32, 617093), (43, 459232), (86, 229616), (113, 174752), (127, 155488), (172, 114808), (226, 87376), (254, 77744), (344, 57404), (452, 43688), (508, 38872), (688, 28702), (904, 21844), (1016, 19436), (1376, 14351), (1808, 10922), (2032, 9718), (3616, 5461), (4064, 4859)]