15981669

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4363}}^1$

素因数の和:4417

約数の個数: 24

約数和(自身を含む): 25869792

約数和(自身を除く): 9888123

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 4363, 13089, 39267, 47993, 143979, 161431, 431937, 484293, 1452879, 1775741, 5327223, 15981669]

約数ペア:

[(1, 15981669), (3, 5327223), (9, 1775741), (11, 1452879), (33, 484293), (37, 431937), (99, 161431), (111, 143979), (333, 47993), (407, 39267), (1221, 13089), (3663, 4363)]