20448519

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{74903}}^1$

素因数の和:74926

約数の個数: 16

約数和(自身を含む): 33556992

約数和(自身を除く): 13108473

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 74903, 224709, 524321, 973739, 1572963, 2921217, 6816173, 20448519]

約数ペア:

[(1, 20448519), (3, 6816173), (7, 2921217), (13, 1572963), (21, 973739), (39, 524321), (91, 224709), (273, 74903)]