20197972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{937}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 37583784

約数和(自身を除く): 17385812

約数列:

[1, 2, 4, 17, 34, 68, 317, 634, 937, 1268, 1874, 3748, 5389, 10778, 15929, 21556, 31858, 63716, 297029, 594058, 1188116, 5049493, 10098986, 20197972]

約数ペア:

[(1, 20197972), (2, 10098986), (4, 5049493), (17, 1188116), (34, 594058), (68, 297029), (317, 63716), (634, 31858), (937, 21556), (1268, 15929), (1874, 10778), (3748, 5389)]