78971613

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{221209}}^1$

素因数の和:221236

約数の個数: 16

約数和(自身を含む): 127416960

約数和(自身を除く): 48445347

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 221209, 663627, 1548463, 3760553, 4645389, 11281659, 26323871, 78971613]

約数ペア:

[(1, 78971613), (3, 26323871), (7, 11281659), (17, 4645389), (21, 3760553), (51, 1548463), (119, 663627), (357, 221209)]