19689111

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 34201440

約数和(自身を除く): 14512329

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 323, 521, 663, 741, 969, 1563, 1989, 2223, 2907, 4199, 4689, 6773, 8857, 9899, 12597, 20319, 26571, 29697, 37791, 60957, 79713, 89091, 115141, 128687, 168283, 345423, 386061, 504849, 1036269, 1158183, 1514547, 2187679, 6563037, 19689111]

約数ペア:

[(1, 19689111), (3, 6563037), (9, 2187679), (13, 1514547), (17, 1158183), (19, 1036269), (39, 504849), (51, 386061), (57, 345423), (117, 168283), (153, 128687), (171, 115141), (221, 89091), (247, 79713), (323, 60957), (521, 37791), (663, 29697), (741, 26571), (969, 20319), (1563, 12597), (1989, 9899), (2223, 8857), (2907, 6773), (4199, 4689)]