15978767

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1627}}^1$

素因数の和:1718

約数の個数: 16

約数和(自身を含む): 19379712

約数和(自身を除く): 3400945

約数列:

[1, 7, 23, 61, 161, 427, 1403, 1627, 9821, 11389, 37421, 99247, 261947, 694729, 2282681, 15978767]

約数ペア:

[(1, 15978767), (7, 2282681), (23, 694729), (61, 261947), (161, 99247), (427, 37421), (1403, 11389), (1627, 9821)]