21576825

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5641}}^1$

素因数の和:5674

約数の個数: 36

約数和(自身を含む): 40927068

約数和(自身を除く): 19350243

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5641, 16923, 28205, 50769, 84615, 95897, 141025, 253845, 287691, 423075, 479485, 863073, 1269225, 1438455, 2397425, 4315365, 7192275, 21576825]

約数ペア:

[(1, 21576825), (3, 7192275), (5, 4315365), (9, 2397425), (15, 1438455), (17, 1269225), (25, 863073), (45, 479485), (51, 423075), (75, 287691), (85, 253845), (153, 141025), (225, 95897), (255, 84615), (425, 50769), (765, 28205), (1275, 16923), (3825, 5641)]