28257159

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 45351936

約数和(自身を除く): 17094777

約数列:

[1, 3, 7, 21, 37, 41, 111, 123, 259, 287, 777, 861, 887, 1517, 2661, 4551, 6209, 10619, 18627, 31857, 32819, 36367, 98457, 109101, 229733, 254569, 689199, 763707, 1345579, 4036737, 9419053, 28257159]

約数ペア:

[(1, 28257159), (3, 9419053), (7, 4036737), (21, 1345579), (37, 763707), (41, 689199), (111, 254569), (123, 229733), (259, 109101), (287, 98457), (777, 36367), (861, 32819), (887, 31857), (1517, 18627), (2661, 10619), (4551, 6209)]