12685215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 21136896

約数和(自身を除く): 8451681

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 277, 355, 645, 831, 1065, 1385, 3053, 4155, 9159, 11911, 15265, 19667, 35733, 45795, 59001, 59555, 98335, 178665, 295005, 845681, 2537043, 4228405, 12685215]

約数ペア:

[(1, 12685215), (3, 4228405), (5, 2537043), (15, 845681), (43, 295005), (71, 178665), (129, 98335), (213, 59555), (215, 59001), (277, 45795), (355, 35733), (645, 19667), (831, 15265), (1065, 11911), (1385, 9159), (3053, 4155)]