21551612

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{653}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 38967936

約数和(自身を除く): 17416324

約数列:

[1, 2, 4, 37, 74, 148, 223, 446, 653, 892, 1306, 2612, 8251, 16502, 24161, 33004, 48322, 96644, 145619, 291238, 582476, 5387903, 10775806, 21551612]

約数ペア:

[(1, 21551612), (2, 10775806), (4, 5387903), (37, 582476), (74, 291238), (148, 145619), (223, 96644), (446, 48322), (653, 33004), (892, 24161), (1306, 16502), (2612, 8251)]