643048215

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{327251}}^1$

素因数の和:327390

約数の個数: 16

約数和(自身を含む): 1036734336

約数和(自身を除く): 393686121

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 327251, 981753, 1636255, 4908765, 42869881, 128609643, 214349405, 643048215]

約数ペア:

[(1, 643048215), (3, 214349405), (5, 128609643), (15, 42869881), (131, 4908765), (393, 1636255), (655, 981753), (1965, 327251)]