19417744

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8731}}^1$

素因数の和:8878

約数の個数: 20

約数和(自身を含む): 37896880

約数和(自身を除く): 18479136

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8731, 17462, 34924, 69848, 139696, 1213609, 2427218, 4854436, 9708872, 19417744]

約数ペア:

[(1, 19417744), (2, 9708872), (4, 4854436), (8, 2427218), (16, 1213609), (139, 139696), (278, 69848), (556, 34924), (1112, 17462), (2224, 8731)]