210521727

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{35281}}^1$

素因数の和:35320

約数の個数: 32

約数和(自身を含む): 355642560

約数和(自身を除く): 145120833

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 5967, 35281, 105843, 317529, 458653, 599777, 952587, 1375959, 1799331, 4127877, 5397993, 7797101, 12383631, 16193979, 23391303, 70173909, 210521727]

約数ペア:

[(1, 210521727), (3, 70173909), (9, 23391303), (13, 16193979), (17, 12383631), (27, 7797101), (39, 5397993), (51, 4127877), (117, 1799331), (153, 1375959), (221, 952587), (351, 599777), (459, 458653), (663, 317529), (1989, 105843), (5967, 35281)]