19493474

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1$

素因数の和:160

約数の個数: 72

約数和(自身を含む): 40555728

約数和(自身を除く): 21062254

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 107, 143, 154, 169, 182, 214, 286, 338, 539, 637, 749, 1001, 1078, 1177, 1183, 1274, 1391, 1498, 1859, 2002, 2354, 2366, 2782, 3718, 5243, 7007, 8239, 8281, 9737, 10486, 13013, 14014, 15301, 16478, 16562, 18083, 19474, 26026, 30602, 36166, 57673, 68159, 91091, 107107, 115346, 126581, 136318, 182182, 198913, 214214, 253162, 397826, 749749, 886067, 1392391, 1499498, 1772134, 2784782, 9746737, 19493474]

約数ペア:

[(1, 19493474), (2, 9746737), (7, 2784782), (11, 1772134), (13, 1499498), (14, 1392391), (22, 886067), (26, 749749), (49, 397826), (77, 253162), (91, 214214), (98, 198913), (107, 182182), (143, 136318), (154, 126581), (169, 115346), (182, 107107), (214, 91091), (286, 68159), (338, 57673), (539, 36166), (637, 30602), (749, 26026), (1001, 19474), (1078, 18083), (1177, 16562), (1183, 16478), (1274, 15301), (1391, 14014), (1498, 13013), (1859, 10486), (2002, 9737), (2354, 8281), (2366, 8239), (2782, 7007), (3718, 5243)]