641990449

素因数分解:

${\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{7103}}^1$

素因数の和:7260

約数の個数: 16

約数和(自身を含む): 695623680

約数和(自身を除く): 53633231

約数列:

[1, 19, 67, 71, 1273, 1349, 4757, 7103, 90383, 134957, 475901, 504313, 9042119, 9581947, 33788971, 641990449]

約数ペア:

[(1, 641990449), (19, 33788971), (67, 9581947), (71, 9042119), (1273, 504313), (1349, 475901), (4757, 134957), (7103, 90383)]