19388721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 31829760

約数和(自身を除く): 12441039

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 107, 187, 209, 289, 321, 323, 561, 627, 867, 969, 1177, 1819, 2033, 3179, 3531, 3553, 5457, 5491, 6099, 9537, 10659, 16473, 20009, 22363, 30923, 34561, 60027, 60401, 67089, 92769, 103683, 181203, 340153, 380171, 587537, 1020459, 1140513, 1762611, 6462907, 19388721]

約数ペア:

[(1, 19388721), (3, 6462907), (11, 1762611), (17, 1140513), (19, 1020459), (33, 587537), (51, 380171), (57, 340153), (107, 181203), (187, 103683), (209, 92769), (289, 67089), (321, 60401), (323, 60027), (561, 34561), (627, 30923), (867, 22363), (969, 20009), (1177, 16473), (1819, 10659), (2033, 9537), (3179, 6099), (3531, 5491), (3553, 5457)]