19967689

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 5837111

約数列:

[1, 7, 19, 29, 31, 133, 167, 203, 217, 551, 589, 899, 1169, 3173, 3857, 4123, 4843, 5177, 6293, 17081, 22211, 33901, 36239, 92017, 98363, 119567, 150133, 644119, 688541, 1050931, 2852527, 19967689]

約数ペア:

[(1, 19967689), (7, 2852527), (19, 1050931), (29, 688541), (31, 644119), (133, 150133), (167, 119567), (203, 98363), (217, 92017), (551, 36239), (589, 33901), (899, 22211), (1169, 17081), (3173, 6293), (3857, 5177), (4123, 4843)]