2130705

素因数分解:

$3^4\times 5^1\times {\mathrm{5261}}^1$

素因数の和:5278

約数の個数: 20

約数和(自身を含む): 3820212

約数和(自身を除く): 1689507

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5261, 15783, 26305, 47349, 78915, 142047, 236745, 426141, 710235, 2130705]

約数ペア:

[(1, 2130705), (3, 710235), (5, 426141), (9, 236745), (15, 142047), (27, 78915), (45, 47349), (81, 26305), (135, 15783), (405, 5261)]