19695116

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9907}}^1$

素因数の和:9989

約数の個数: 24

約数和(自身を含む): 39949056

約数和(自身を除く): 20253940

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 9907, 19814, 39628, 69349, 138698, 277396, 703397, 1406794, 2813588, 4923779, 9847558, 19695116]

約数ペア:

[(1, 19695116), (2, 9847558), (4, 4923779), (7, 2813588), (14, 1406794), (28, 703397), (71, 277396), (142, 138698), (284, 69349), (497, 39628), (994, 19814), (1988, 9907)]