21812445

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28513}}^1$

素因数の和:28541

約数の個数: 24

約数和(自身を含む): 40033656

約数和(自身を除く): 18221211

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28513, 85539, 142565, 256617, 427695, 484721, 1283085, 1454163, 2423605, 4362489, 7270815, 21812445]

約数ペア:

[(1, 21812445), (3, 7270815), (5, 4362489), (9, 2423605), (15, 1454163), (17, 1283085), (45, 484721), (51, 427695), (85, 256617), (153, 142565), (255, 85539), (765, 28513)]