19885866

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 56038752

約数和(自身を除く): 36152886

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 43, 49, 66, 77, 78, 86, 91, 98, 121, 129, 143, 147, 154, 182, 231, 242, 258, 273, 286, 294, 301, 363, 429, 462, 473, 539, 546, 559, 602, 637, 726, 847, 858, 903, 946, 1001, 1078, 1118, 1274, 1419, 1573, 1617, 1677, 1694, 1806, 1911, 2002, 2107, 2541, 2838, 3003, 3146, 3234, 3311, 3354, 3822, 3913, 4214, 4719, 5082, 5203, 5929, 6006, 6149, 6321, 6622, 7007, 7826, 9438, 9933, 10406, 11011, 11739, 11858, 12298, 12642, 14014, 15609, 17787, 18447, 19866, 21021, 22022, 23177, 23478, 27391, 31218, 33033, 35574, 36421, 36894, 42042, 43043, 46354, 54782, 66066, 67639, 69531, 72842, 77077, 82173, 86086, 109263, 129129, 135278, 139062, 154154, 164346, 202917, 218526, 231231, 254947, 258258, 301301, 405834, 462462, 473473, 509894, 602602, 764841, 903903, 946946, 1420419, 1529682, 1807806, 2840838, 3314311, 6628622, 9942933, 19885866]

約数ペア:

[(1, 19885866), (2, 9942933), (3, 6628622), (6, 3314311), (7, 2840838), (11, 1807806), (13, 1529682), (14, 1420419), (21, 946946), (22, 903903), (26, 764841), (33, 602602), (39, 509894), (42, 473473), (43, 462462), (49, 405834), (66, 301301), (77, 258258), (78, 254947), (86, 231231), (91, 218526), (98, 202917), (121, 164346), (129, 154154), (143, 139062), (147, 135278), (154, 129129), (182, 109263), (231, 86086), (242, 82173), (258, 77077), (273, 72842), (286, 69531), (294, 67639), (301, 66066), (363, 54782), (429, 46354), (462, 43043), (473, 42042), (539, 36894), (546, 36421), (559, 35574), (602, 33033), (637, 31218), (726, 27391), (847, 23478), (858, 23177), (903, 22022), (946, 21021), (1001, 19866), (1078, 18447), (1118, 17787), (1274, 15609), (1419, 14014), (1573, 12642), (1617, 12298), (1677, 11858), (1694, 11739), (1806, 11011), (1911, 10406), (2002, 9933), (2107, 9438), (2541, 7826), (2838, 7007), (3003, 6622), (3146, 6321), (3234, 6149), (3311, 6006), (3354, 5929), (3822, 5203), (3913, 5082), (4214, 4719)]