21804885

素因数分解:

$3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2707}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 38020320

約数和(自身を除く): 16215435

約数列:

[1, 3, 5, 9, 15, 45, 179, 537, 895, 1611, 2685, 2707, 8055, 8121, 13535, 24363, 40605, 121815, 484553, 1453659, 2422765, 4360977, 7268295, 21804885]

約数ペア:

[(1, 21804885), (3, 7268295), (5, 4360977), (9, 2422765), (15, 1453659), (45, 484553), (179, 121815), (537, 40605), (895, 24363), (1611, 13535), (2685, 8121), (2707, 8055)]