3121155

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1613}}^1$

素因数の和:1667

約数の個数: 24

約数和(自身を含む): 5539248

約数和(自身を除く): 2418093

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1613, 1935, 4839, 8065, 14517, 24195, 69359, 72585, 208077, 346795, 624231, 1040385, 3121155]

約数ペア:

[(1, 3121155), (3, 1040385), (5, 624231), (9, 346795), (15, 208077), (43, 72585), (45, 69359), (129, 24195), (215, 14517), (387, 8065), (645, 4839), (1613, 1935)]