20697945

素因数分解:

$3^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2251}}^1$

素因数の和:2872

約数の個数: 16

約数和(自身を含む): 33185472

約数和(自身を除く): 12487527

約数列:

[1, 3, 5, 15, 613, 1839, 2251, 3065, 6753, 9195, 11255, 33765, 1379863, 4139589, 6899315, 20697945]

約数ペア:

[(1, 20697945), (3, 6899315), (5, 4139589), (15, 1379863), (613, 33765), (1839, 11255), (2251, 9195), (3065, 6753)]