1998984965

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{447701}}^1$

素因数の和:447772

約数の個数: 16

約数和(自身を含む): 2578763520

約数和(自身を除く): 579778555

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 447701, 2238505, 8506319, 21041947, 42531595, 105209735, 399796993, 1998984965]

約数ペア:

[(1, 1998984965), (5, 399796993), (19, 105209735), (47, 42531595), (95, 21041947), (235, 8506319), (893, 2238505), (4465, 447701)]