21000512728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201928007}}^1$

素因数の和:201928026

約数の個数: 16

約数和(自身を含む): 42404881680

約数和(自身を除く): 21404368952

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201928007, 403856014, 807712028, 1615424056, 2625064091, 5250128182, 10500256364, 21000512728]

約数ペア:

[(1, 21000512728), (2, 10500256364), (4, 5250128182), (8, 2625064091), (13, 1615424056), (26, 807712028), (52, 403856014), (104, 201928007)]