639334563

素因数分解:

$3^1\times 7^1\times {\mathrm{4519}}^1\times {\mathrm{6737}}^1$

素因数の和:11266

約数の個数: 16

約数和(自身を含む): 974584320

約数和(自身を除く): 335249757

約数列:

[1, 3, 7, 21, 4519, 6737, 13557, 20211, 31633, 47159, 94899, 141477, 30444503, 91333509, 213111521, 639334563]

約数ペア:

[(1, 639334563), (3, 213111521), (7, 91333509), (21, 30444503), (4519, 141477), (6737, 94899), (13557, 47159), (20211, 31633)]