2191144319

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{264599}}^1$

素因数の和:264639

約数の個数: 18

約数和(自身を含む): 2760042600

約数和(自身を除く): 568898281

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 264599, 1852193, 3439787, 12965351, 24078509, 44717231, 168549563, 313020617, 2191144319]

約数ペア:

[(1, 2191144319), (7, 313020617), (13, 168549563), (49, 44717231), (91, 24078509), (169, 12965351), (637, 3439787), (1183, 1852193), (8281, 264599)]