19990804

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{293}}^1\times {\mathrm{461}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 36130248

約数和(自身を除く): 16139444

約数列:

[1, 2, 4, 37, 74, 148, 293, 461, 586, 922, 1172, 1844, 10841, 17057, 21682, 34114, 43364, 68228, 135073, 270146, 540292, 4997701, 9995402, 19990804]

約数ペア:

[(1, 19990804), (2, 9995402), (4, 4997701), (37, 540292), (74, 270146), (148, 135073), (293, 68228), (461, 43364), (586, 34114), (922, 21682), (1172, 17057), (1844, 10841)]