16890321

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4211}}^1$

素因数の和:4412

約数の個数: 16

約数和(自身を含む): 25878528

約数和(自身を除く): 8988207

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 4211, 12633, 29477, 88431, 804301, 2412903, 5630107, 16890321]

約数ペア:

[(1, 16890321), (3, 5630107), (7, 2412903), (21, 804301), (191, 88431), (573, 29477), (1337, 12633), (4011, 4211)]