19862087

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 25681920

約数和(自身を除く): 5819833

約数列:

[1, 7, 19, 23, 43, 133, 151, 161, 301, 437, 817, 989, 1057, 2869, 3059, 3473, 5719, 6493, 6923, 18791, 20083, 24311, 45451, 65987, 123367, 131537, 149339, 461909, 863569, 1045373, 2837441, 19862087]

約数ペア:

[(1, 19862087), (7, 2837441), (19, 1045373), (23, 863569), (43, 461909), (133, 149339), (151, 131537), (161, 123367), (301, 65987), (437, 45451), (817, 24311), (989, 20083), (1057, 18791), (2869, 6923), (3059, 6493), (3473, 5719)]