20174427

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 41713056

約数和(自身を除く): 21538629

約数列:

[1, 3, 7, 9, 13, 17, 21, 23, 27, 39, 49, 51, 63, 69, 81, 91, 117, 119, 147, 153, 161, 189, 207, 221, 273, 299, 351, 357, 391, 441, 459, 483, 567, 621, 637, 663, 819, 833, 897, 1053, 1071, 1127, 1173, 1323, 1377, 1449, 1547, 1863, 1911, 1989, 2093, 2457, 2499, 2691, 2737, 3213, 3381, 3519, 3969, 4347, 4641, 5083, 5733, 5967, 6279, 7371, 7497, 8073, 8211, 9639, 10143, 10557, 10829, 13041, 13923, 14651, 15249, 17199, 17901, 18837, 19159, 22491, 24219, 24633, 30429, 31671, 32487, 35581, 41769, 43953, 45747, 51597, 56511, 57477, 67473, 73899, 91287, 97461, 106743, 125307, 131859, 137241, 169533, 172431, 221697, 249067, 292383, 320229, 395577, 411723, 517293, 747201, 877149, 960687, 1186731, 1551879, 2241603, 2882061, 6724809, 20174427]

約数ペア:

[(1, 20174427), (3, 6724809), (7, 2882061), (9, 2241603), (13, 1551879), (17, 1186731), (21, 960687), (23, 877149), (27, 747201), (39, 517293), (49, 411723), (51, 395577), (63, 320229), (69, 292383), (81, 249067), (91, 221697), (117, 172431), (119, 169533), (147, 137241), (153, 131859), (161, 125307), (189, 106743), (207, 97461), (221, 91287), (273, 73899), (299, 67473), (351, 57477), (357, 56511), (391, 51597), (441, 45747), (459, 43953), (483, 41769), (567, 35581), (621, 32487), (637, 31671), (663, 30429), (819, 24633), (833, 24219), (897, 22491), (1053, 19159), (1071, 18837), (1127, 17901), (1173, 17199), (1323, 15249), (1377, 14651), (1449, 13923), (1547, 13041), (1863, 10829), (1911, 10557), (1989, 10143), (2093, 9639), (2457, 8211), (2499, 8073), (2691, 7497), (2737, 7371), (3213, 6279), (3381, 5967), (3519, 5733), (3969, 5083), (4347, 4641)]