19726916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 39892608

約数和(自身を除く): 20165692

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 101, 193, 202, 253, 386, 404, 506, 772, 1012, 1111, 2123, 2222, 2323, 4246, 4439, 4444, 4646, 8492, 8878, 9292, 17756, 19493, 25553, 38986, 48829, 51106, 77972, 97658, 102212, 195316, 214423, 428846, 448339, 857692, 896678, 1793356, 4931729, 9863458, 19726916]

約数ペア:

[(1, 19726916), (2, 9863458), (4, 4931729), (11, 1793356), (22, 896678), (23, 857692), (44, 448339), (46, 428846), (92, 214423), (101, 195316), (193, 102212), (202, 97658), (253, 77972), (386, 51106), (404, 48829), (506, 38986), (772, 25553), (1012, 19493), (1111, 17756), (2123, 9292), (2222, 8878), (2323, 8492), (4246, 4646), (4439, 4444)]