21000632068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{403858309}}^1$

素因数の和:403858326

約数の個数: 12

約数和(自身を含む): 39578114380

約数和(自身を除く): 18577482312

約数列:

[1, 2, 4, 13, 26, 52, 403858309, 807716618, 1615433236, 5250158017, 10500316034, 21000632068]

約数ペア:

[(1, 21000632068), (2, 10500316034), (4, 5250158017), (13, 1615433236), (26, 807716618), (52, 403858309)]