21693256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208589}}^1$

素因数の和:208608

約数の個数: 16

約数和(自身を含む): 43803900

約数和(自身を除く): 22110644

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208589, 417178, 834356, 1668712, 2711657, 5423314, 10846628, 21693256]

約数ペア:

[(1, 21693256), (2, 10846628), (4, 5423314), (8, 2711657), (13, 1668712), (26, 834356), (52, 417178), (104, 208589)]