21251106

素因数分解:

$2^1\times 3^3\times {\mathrm{393539}}^1$

素因数の和:393550

約数の個数: 16

約数和(自身を含む): 47224800

約数和(自身を除く): 25973694

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 393539, 787078, 1180617, 2361234, 3541851, 7083702, 10625553, 21251106]

約数ペア:

[(1, 21251106), (2, 10625553), (3, 7083702), (6, 3541851), (9, 2361234), (18, 1180617), (27, 787078), (54, 393539)]