20889414

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 120

約数和(自身を含む): 58457520

約数和(自身を除く): 37568106

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 81, 91, 109, 117, 126, 162, 169, 182, 189, 218, 234, 273, 327, 338, 351, 378, 507, 546, 567, 654, 702, 763, 819, 981, 1014, 1053, 1134, 1183, 1417, 1521, 1526, 1638, 1962, 2106, 2289, 2366, 2457, 2834, 2943, 3042, 3549, 4251, 4563, 4578, 4914, 5886, 6867, 7098, 7371, 8502, 8829, 9126, 9919, 10647, 12753, 13689, 13734, 14742, 17658, 18421, 19838, 20601, 21294, 25506, 27378, 29757, 31941, 36842, 38259, 41202, 55263, 59514, 61803, 63882, 76518, 89271, 95823, 110526, 114777, 123606, 128947, 165789, 178542, 191646, 229554, 257894, 267813, 331578, 386841, 497367, 535626, 773682, 803439, 994734, 1160523, 1492101, 1606878, 2321046, 2984202, 3481569, 6963138, 10444707, 20889414]

約数ペア:

[(1, 20889414), (2, 10444707), (3, 6963138), (6, 3481569), (7, 2984202), (9, 2321046), (13, 1606878), (14, 1492101), (18, 1160523), (21, 994734), (26, 803439), (27, 773682), (39, 535626), (42, 497367), (54, 386841), (63, 331578), (78, 267813), (81, 257894), (91, 229554), (109, 191646), (117, 178542), (126, 165789), (162, 128947), (169, 123606), (182, 114777), (189, 110526), (218, 95823), (234, 89271), (273, 76518), (327, 63882), (338, 61803), (351, 59514), (378, 55263), (507, 41202), (546, 38259), (567, 36842), (654, 31941), (702, 29757), (763, 27378), (819, 25506), (981, 21294), (1014, 20601), (1053, 19838), (1134, 18421), (1183, 17658), (1417, 14742), (1521, 13734), (1526, 13689), (1638, 12753), (1962, 10647), (2106, 9919), (2289, 9126), (2366, 8829), (2457, 8502), (2834, 7371), (2943, 7098), (3042, 6867), (3549, 5886), (4251, 4914), (4563, 4578)]