21041742208

素因数分解:

$2^7\times {\mathrm{164388611}}^1$

素因数の和:164388625

約数の個数: 16

約数和(自身を含む): 41919096060

約数和(自身を除く): 20877353852

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 164388611, 328777222, 657554444, 1315108888, 2630217776, 5260435552, 10520871104, 21041742208]

約数ペア:

[(1, 21041742208), (2, 10520871104), (4, 5260435552), (8, 2630217776), (16, 1315108888), (32, 657554444), (64, 328777222), (128, 164388611)]