21937538

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{353}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 39557376

約数和(自身を除く): 17619838

約数列:

[1, 2, 7, 14, 23, 46, 161, 193, 322, 353, 386, 706, 1351, 2471, 2702, 4439, 4942, 8119, 8878, 16238, 31073, 56833, 62146, 68129, 113666, 136258, 476903, 953806, 1566967, 3133934, 10968769, 21937538]

約数ペア:

[(1, 21937538), (2, 10968769), (7, 3133934), (14, 1566967), (23, 953806), (46, 476903), (161, 136258), (193, 113666), (322, 68129), (353, 62146), (386, 56833), (706, 31073), (1351, 16238), (2471, 8878), (2702, 8119), (4439, 4942)]