19291118

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 38185344

約数和(自身を除く): 18894226

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 133, 154, 209, 266, 347, 361, 418, 694, 722, 1463, 2429, 2527, 2926, 3817, 3971, 4858, 5054, 6593, 7634, 7942, 13186, 26719, 27797, 46151, 53438, 55594, 72523, 92302, 125267, 145046, 250534, 507661, 876869, 1015322, 1377937, 1753738, 2755874, 9645559, 19291118]

約数ペア:

[(1, 19291118), (2, 9645559), (7, 2755874), (11, 1753738), (14, 1377937), (19, 1015322), (22, 876869), (38, 507661), (77, 250534), (133, 145046), (154, 125267), (209, 92302), (266, 72523), (347, 55594), (361, 53438), (418, 46151), (694, 27797), (722, 26719), (1463, 13186), (2429, 7942), (2527, 7634), (2926, 6593), (3817, 5054), (3971, 4858)]