19973007

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{19993}}^1$

素因数の和:20039

約数の個数: 16

約数和(自身を含む): 30390880

約数和(自身を除く): 10417873

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 19993, 59979, 179937, 539811, 739741, 2219223, 6657669, 19973007]

約数ペア:

[(1, 19973007), (3, 6657669), (9, 2219223), (27, 739741), (37, 539811), (111, 179937), (333, 59979), (999, 19993)]