19880498547

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{4621}}^1$

素因数の和:4770

約数の個数: 128

約数和(自身を含む): 38762680320

約数和(自身を除く): 18882181773

約数列:

[1, 3, 7, 9, 13, 17, 21, 27, 39, 51, 63, 91, 103, 117, 119, 153, 189, 221, 273, 309, 351, 357, 459, 663, 721, 819, 927, 1071, 1339, 1547, 1751, 1989, 2163, 2457, 2781, 3213, 4017, 4621, 4641, 5253, 5967, 6489, 9373, 12051, 12257, 13863, 13923, 15759, 19467, 22763, 28119, 32347, 36153, 36771, 41589, 41769, 47277, 60073, 68289, 78557, 84357, 97041, 110313, 124767, 159341, 180219, 204867, 235671, 253071, 291123, 330939, 420511, 475963, 478023, 540657, 549899, 614601, 707013, 873369, 1021241, 1261533, 1427889, 1434069, 1621971, 1649697, 2121039, 3063723, 3331741, 3784599, 4283667, 4302207, 4949091, 6187519, 7148687, 8091371, 9191169, 9995223, 11353797, 12851001, 14847273, 18562557, 21446061, 24274113, 27573507, 29985669, 43312633, 55687671, 56639597, 64338183, 72822339, 89957007, 105187823, 129937899, 167063013, 169918791, 193014549, 218467017, 315563469, 389813697, 509756373, 736314761, 946690407, 1169441091, 1529269119, 2208944283, 2840071221, 6626832849, 19880498547]

約数ペア:

[(1, 19880498547), (3, 6626832849), (7, 2840071221), (9, 2208944283), (13, 1529269119), (17, 1169441091), (21, 946690407), (27, 736314761), (39, 509756373), (51, 389813697), (63, 315563469), (91, 218467017), (103, 193014549), (117, 169918791), (119, 167063013), (153, 129937899), (189, 105187823), (221, 89957007), (273, 72822339), (309, 64338183), (351, 56639597), (357, 55687671), (459, 43312633), (663, 29985669), (721, 27573507), (819, 24274113), (927, 21446061), (1071, 18562557), (1339, 14847273), (1547, 12851001), (1751, 11353797), (1989, 9995223), (2163, 9191169), (2457, 8091371), (2781, 7148687), (3213, 6187519), (4017, 4949091), (4621, 4302207), (4641, 4283667), (5253, 3784599), (5967, 3331741), (6489, 3063723), (9373, 2121039), (12051, 1649697), (12257, 1621971), (13863, 1434069), (13923, 1427889), (15759, 1261533), (19467, 1021241), (22763, 873369), (28119, 707013), (32347, 614601), (36153, 549899), (36771, 540657), (41589, 478023), (41769, 475963), (47277, 420511), (60073, 330939), (68289, 291123), (78557, 253071), (84357, 235671), (97041, 204867), (110313, 180219), (124767, 159341)]