19031481

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1123}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 31561920

約数和(自身を除く): 12530439

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1123, 1883, 2421, 3369, 5649, 7861, 10107, 16947, 23583, 70749, 302087, 906261, 2114609, 2718783, 6343827, 19031481]

約数ペア:

[(1, 19031481), (3, 6343827), (7, 2718783), (9, 2114609), (21, 906261), (63, 302087), (269, 70749), (807, 23583), (1123, 16947), (1883, 10107), (2421, 7861), (3369, 5649)]