21778432

素因数分解:

$2^{12}\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:446

約数の個数: 52

約数和(自身を含む): 47016340

約数和(自身を除く): 25237908

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 409, 416, 512, 818, 832, 1024, 1636, 1664, 2048, 3272, 3328, 4096, 5317, 6544, 6656, 10634, 13088, 13312, 21268, 26176, 26624, 42536, 52352, 53248, 85072, 104704, 170144, 209408, 340288, 418816, 680576, 837632, 1361152, 1675264, 2722304, 5444608, 10889216, 21778432]

約数ペア:

[(1, 21778432), (2, 10889216), (4, 5444608), (8, 2722304), (13, 1675264), (16, 1361152), (26, 837632), (32, 680576), (52, 418816), (64, 340288), (104, 209408), (128, 170144), (208, 104704), (256, 85072), (409, 53248), (416, 52352), (512, 42536), (818, 26624), (832, 26176), (1024, 21268), (1636, 13312), (1664, 13088), (2048, 10634), (3272, 6656), (3328, 6544), (4096, 5317)]