21461565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84163}}^1$

素因数の和:84188

約数の個数: 16

約数和(自身を含む): 36358848

約数和(自身を除く): 14897283

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 84163, 252489, 420815, 1262445, 1430771, 4292313, 7153855, 21461565]

約数ペア:

[(1, 21461565), (3, 7153855), (5, 4292313), (15, 1430771), (17, 1262445), (51, 420815), (85, 252489), (255, 84163)]