21091954081

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{260417}}^1$

素因数の和:260664

約数の個数: 16

約数和(自身を含む): 23750121600

約数和(自身を除く): 2658167519

約数列:

[1, 11, 37, 199, 407, 2189, 7363, 80993, 260417, 2864587, 9635429, 51822983, 105989719, 570052813, 1917450371, 21091954081]

約数ペア:

[(1, 21091954081), (11, 1917450371), (37, 570052813), (199, 105989719), (407, 51822983), (2189, 9635429), (7363, 2864587), (80993, 260417)]