19319780379

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1\times {\mathrm{211777}}^1$

素因数の和:212474

約数の個数: 16

約数和(自身を含む): 26348571648

約数和(自身を除く): 7028791269

約数列:

[1, 3, 47, 141, 647, 1941, 30409, 91227, 211777, 635331, 9953519, 29860557, 137019719, 411059157, 6439926793, 19319780379]

約数ペア:

[(1, 19319780379), (3, 6439926793), (47, 411059157), (141, 137019719), (647, 29860557), (1941, 9953519), (30409, 635331), (91227, 211777)]