19862775

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2112

約数の個数: 36

約数和(自身を含む): 36421528

約数和(自身を除く): 16558753

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2053, 3225, 6159, 9675, 10265, 18477, 30795, 51325, 88279, 92385, 153975, 264837, 441395, 461925, 794511, 1324185, 2206975, 3972555, 6620925, 19862775]

約数ペア:

[(1, 19862775), (3, 6620925), (5, 3972555), (9, 2206975), (15, 1324185), (25, 794511), (43, 461925), (45, 441395), (75, 264837), (129, 153975), (215, 92385), (225, 88279), (387, 51325), (645, 30795), (1075, 18477), (1935, 10265), (2053, 9675), (3225, 6159)]