20937474

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 27723006

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 71, 86, 127, 129, 142, 213, 254, 258, 381, 387, 426, 639, 762, 774, 1143, 1161, 1278, 1917, 2286, 2322, 3053, 3429, 3834, 5461, 6106, 6858, 9017, 9159, 10922, 16383, 18034, 18318, 27051, 27477, 32766, 49149, 54102, 54954, 81153, 82431, 98298, 147447, 162306, 164862, 243459, 294894, 387731, 486918, 775462, 1163193, 2326386, 3489579, 6979158, 10468737, 20937474]

約数ペア:

[(1, 20937474), (2, 10468737), (3, 6979158), (6, 3489579), (9, 2326386), (18, 1163193), (27, 775462), (43, 486918), (54, 387731), (71, 294894), (86, 243459), (127, 164862), (129, 162306), (142, 147447), (213, 98298), (254, 82431), (258, 81153), (381, 54954), (387, 54102), (426, 49149), (639, 32766), (762, 27477), (774, 27051), (1143, 18318), (1161, 18034), (1278, 16383), (1917, 10922), (2286, 9159), (2322, 9017), (3053, 6858), (3429, 6106), (3834, 5461)]