16889005

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 24710400

約数和(自身を除く): 7821395

約数列:

[1, 5, 7, 19, 35, 95, 109, 133, 233, 545, 665, 763, 1165, 1631, 2071, 3815, 4427, 8155, 10355, 14497, 22135, 25397, 30989, 72485, 126985, 154945, 177779, 482543, 888895, 2412715, 3377801, 16889005]

約数ペア:

[(1, 16889005), (5, 3377801), (7, 2412715), (19, 888895), (35, 482543), (95, 177779), (109, 154945), (133, 126985), (233, 72485), (545, 30989), (665, 25397), (763, 22135), (1165, 14497), (1631, 10355), (2071, 8155), (3815, 4427)]