21963220

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4273}}^1$

素因数の和:4539

約数の個数: 24

約数和(自身を含む): 46313064

約数和(自身を除く): 24349844

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 4273, 5140, 8546, 17092, 21365, 42730, 85460, 1098161, 2196322, 4392644, 5490805, 10981610, 21963220]

約数ペア:

[(1, 21963220), (2, 10981610), (4, 5490805), (5, 4392644), (10, 2196322), (20, 1098161), (257, 85460), (514, 42730), (1028, 21365), (1285, 17092), (2570, 8546), (4273, 5140)]