19054189

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 26593920

約数和(自身を除く): 7539731

約数列:

[1, 7, 11, 23, 29, 49, 53, 77, 161, 203, 253, 319, 371, 539, 583, 667, 1127, 1219, 1421, 1537, 1771, 2233, 2597, 4081, 4669, 7337, 8533, 10759, 12397, 13409, 15631, 16907, 28567, 32683, 35351, 51359, 59731, 75313, 93863, 118349, 247457, 359513, 388861, 657041, 828443, 1732199, 2722027, 19054189]

約数ペア:

[(1, 19054189), (7, 2722027), (11, 1732199), (23, 828443), (29, 657041), (49, 388861), (53, 359513), (77, 247457), (161, 118349), (203, 93863), (253, 75313), (319, 59731), (371, 51359), (539, 35351), (583, 32683), (667, 28567), (1127, 16907), (1219, 15631), (1421, 13409), (1537, 12397), (1771, 10759), (2233, 8533), (2597, 7337), (4081, 4669)]