19665935

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1787}}^1$

素因数の和:1894

約数の個数: 16

約数和(自身を含む): 24717312

約数和(自身を除く): 5051377

約数列:

[1, 5, 31, 71, 155, 355, 1787, 2201, 8935, 11005, 55397, 126877, 276985, 634385, 3933187, 19665935]

約数ペア:

[(1, 19665935), (5, 3933187), (31, 634385), (71, 276985), (155, 126877), (355, 55397), (1787, 11005), (2201, 8935)]