19959724

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{859}}^1$

素因数の和:1057

約数の個数: 24

約数和(自身を含む): 36144080

約数和(自身を除く): 16184356

約数列:

[1, 2, 4, 37, 74, 148, 157, 314, 628, 859, 1718, 3436, 5809, 11618, 23236, 31783, 63566, 127132, 134863, 269726, 539452, 4989931, 9979862, 19959724]

約数ペア:

[(1, 19959724), (2, 9979862), (4, 4989931), (37, 539452), (74, 269726), (148, 134863), (157, 127132), (314, 63566), (628, 31783), (859, 23236), (1718, 11618), (3436, 5809)]