19838884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{397}}^1$

素因数の和:476

約数の個数: 36

約数和(自身を含む): 38730972

約数和(自身を除く): 18892088

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 397, 403, 794, 806, 961, 1588, 1612, 1922, 3844, 5161, 10322, 12307, 12493, 20644, 24614, 24986, 49228, 49972, 159991, 319982, 381517, 639964, 763034, 1526068, 4959721, 9919442, 19838884]

約数ペア:

[(1, 19838884), (2, 9919442), (4, 4959721), (13, 1526068), (26, 763034), (31, 639964), (52, 381517), (62, 319982), (124, 159991), (397, 49972), (403, 49228), (794, 24986), (806, 24614), (961, 20644), (1588, 12493), (1612, 12307), (1922, 10322), (3844, 5161)]