21497726416

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{313}}^1\times {\mathrm{51719}}^1$

素因数の和:52123

約数の個数: 40

約数和(自身を含む): 42289168320

約数和(自身を除く): 20791441904

約数列:

[1, 2, 4, 8, 16, 83, 166, 313, 332, 626, 664, 1252, 1328, 2504, 5008, 25979, 51719, 51958, 103438, 103916, 206876, 207832, 413752, 415664, 827504, 4292677, 8585354, 16188047, 17170708, 32376094, 34341416, 64752188, 68682832, 129504376, 259008752, 1343607901, 2687215802, 5374431604, 10748863208, 21497726416]

約数ペア:

[(1, 21497726416), (2, 10748863208), (4, 5374431604), (8, 2687215802), (16, 1343607901), (83, 259008752), (166, 129504376), (313, 68682832), (332, 64752188), (626, 34341416), (664, 32376094), (1252, 17170708), (1328, 16188047), (2504, 8585354), (5008, 4292677), (25979, 827504), (51719, 415664), (51958, 413752), (103438, 207832), (103916, 206876)]