213152079

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{691}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 334905856

約数和(自身を除く): 121753777

約数列:

[1, 3, 7, 21, 37, 111, 259, 397, 691, 777, 1191, 2073, 2779, 4837, 8337, 14511, 14689, 25567, 44067, 76701, 102823, 178969, 274327, 308469, 536907, 822981, 1920289, 5760867, 10150099, 30450297, 71050693, 213152079]

約数ペア:

[(1, 213152079), (3, 71050693), (7, 30450297), (21, 10150099), (37, 5760867), (111, 1920289), (259, 822981), (397, 536907), (691, 308469), (777, 274327), (1191, 178969), (2073, 102823), (2779, 76701), (4837, 44067), (8337, 25567), (14511, 14689)]