2131515

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 4036560

約数和(自身を除く): 1905045

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 277, 285, 405, 513, 831, 855, 1385, 1539, 2493, 2565, 4155, 5263, 7479, 7695, 12465, 15789, 22437, 26315, 37395, 47367, 78945, 112185, 142101, 236835, 426303, 710505, 2131515]

約数ペア:

[(1, 2131515), (3, 710505), (5, 426303), (9, 236835), (15, 142101), (19, 112185), (27, 78945), (45, 47367), (57, 37395), (81, 26315), (95, 22437), (135, 15789), (171, 12465), (277, 7695), (285, 7479), (405, 5263), (513, 4155), (831, 2565), (855, 2493), (1385, 1539)]