21649552

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13397}}^1$

素因数の和:13506

約数の個数: 20

約数和(自身を含む): 42364476

約数和(自身を除く): 20714924

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13397, 26794, 53588, 107176, 214352, 1353097, 2706194, 5412388, 10824776, 21649552]

約数ペア:

[(1, 21649552), (2, 10824776), (4, 5412388), (8, 2706194), (16, 1353097), (101, 214352), (202, 107176), (404, 53588), (808, 26794), (1616, 13397)]