161581567

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{881}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 199085040

約数和(自身を除く): 37503473

約数列:

[1, 7, 19, 49, 133, 197, 881, 931, 1379, 3743, 6167, 9653, 16739, 26201, 43169, 117173, 173557, 183407, 820211, 1214899, 3297583, 8504293, 23083081, 161581567]

約数ペア:

[(1, 161581567), (7, 23083081), (19, 8504293), (49, 3297583), (133, 1214899), (197, 820211), (881, 183407), (931, 173557), (1379, 117173), (3743, 43169), (6167, 26201), (9653, 16739)]