31091193

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 54912000

約数和(自身を除く): 23820807

約数列:

[1, 3, 7, 9, 21, 23, 43, 63, 69, 129, 161, 207, 301, 387, 483, 499, 903, 989, 1449, 1497, 2709, 2967, 3493, 4491, 6923, 8901, 10479, 11477, 20769, 21457, 31437, 34431, 62307, 64371, 80339, 103293, 150199, 193113, 241017, 450597, 493511, 723051, 1351791, 1480533, 3454577, 4441599, 10363731, 31091193]

約数ペア:

[(1, 31091193), (3, 10363731), (7, 4441599), (9, 3454577), (21, 1480533), (23, 1351791), (43, 723051), (63, 493511), (69, 450597), (129, 241017), (161, 193113), (207, 150199), (301, 103293), (387, 80339), (483, 64371), (499, 62307), (903, 34431), (989, 31437), (1449, 21457), (1497, 20769), (2709, 11477), (2967, 10479), (3493, 8901), (4491, 6923)]