16981923

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6173}}^1$

素因数の和:6314

約数の個数: 16

約数和(自身を含む): 26078976

約数和(自身を除く): 9097053

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 6173, 18519, 43211, 129633, 808663, 2425989, 5660641, 16981923]

約数ペア:

[(1, 16981923), (3, 5660641), (7, 2425989), (21, 808663), (131, 129633), (393, 43211), (917, 18519), (2751, 6173)]