18805878

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 53222400

約数和(自身を除く): 34416522

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 43, 54, 63, 78, 86, 89, 91, 117, 126, 129, 178, 182, 189, 234, 258, 267, 273, 301, 351, 378, 387, 534, 546, 559, 602, 623, 702, 774, 801, 819, 903, 1118, 1157, 1161, 1246, 1602, 1638, 1677, 1806, 1869, 2314, 2322, 2403, 2457, 2709, 3354, 3471, 3738, 3827, 3913, 4806, 4914, 5031, 5418, 5607, 6942, 7654, 7826, 8099, 8127, 10062, 10413, 11214, 11481, 11739, 15093, 16198, 16254, 16821, 20826, 22962, 23478, 24297, 26789, 30186, 31239, 33642, 34443, 35217, 48594, 49751, 53578, 62478, 68886, 70434, 72891, 80367, 99502, 103329, 105651, 145782, 149253, 160734, 206658, 211302, 218673, 241101, 298506, 348257, 437346, 447759, 482202, 696514, 723303, 895518, 1044771, 1343277, 1446606, 2089542, 2686554, 3134313, 6268626, 9402939, 18805878]

約数ペア:

[(1, 18805878), (2, 9402939), (3, 6268626), (6, 3134313), (7, 2686554), (9, 2089542), (13, 1446606), (14, 1343277), (18, 1044771), (21, 895518), (26, 723303), (27, 696514), (39, 482202), (42, 447759), (43, 437346), (54, 348257), (63, 298506), (78, 241101), (86, 218673), (89, 211302), (91, 206658), (117, 160734), (126, 149253), (129, 145782), (178, 105651), (182, 103329), (189, 99502), (234, 80367), (258, 72891), (267, 70434), (273, 68886), (301, 62478), (351, 53578), (378, 49751), (387, 48594), (534, 35217), (546, 34443), (559, 33642), (602, 31239), (623, 30186), (702, 26789), (774, 24297), (801, 23478), (819, 22962), (903, 20826), (1118, 16821), (1157, 16254), (1161, 16198), (1246, 15093), (1602, 11739), (1638, 11481), (1677, 11214), (1806, 10413), (1869, 10062), (2314, 8127), (2322, 8099), (2403, 7826), (2457, 7654), (2709, 6942), (3354, 5607), (3471, 5418), (3738, 5031), (3827, 4914), (3913, 4806)]