199945487

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{1621}}^1$

素因数の和:1958

約数の個数: 16

約数和(自身を含む): 232945152

約数和(自身を除く): 32999665

約数列:

[1, 7, 67, 263, 469, 1621, 1841, 11347, 17621, 108607, 123347, 426323, 760249, 2984261, 28563641, 199945487]

約数ペア:

[(1, 199945487), (7, 28563641), (67, 2984261), (263, 760249), (469, 426323), (1621, 123347), (1841, 108607), (11347, 17621)]