21364839

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:435

約数の個数: 24

約数和(自身を含む): 31616000

約数和(自身を除く): 10251161

約数列:

[1, 3, 9, 79, 151, 199, 237, 453, 597, 711, 1359, 1791, 11929, 15721, 30049, 35787, 47163, 90147, 107361, 141489, 270441, 2373871, 7121613, 21364839]

約数ペア:

[(1, 21364839), (3, 7121613), (9, 2373871), (79, 270441), (151, 141489), (199, 107361), (237, 90147), (453, 47163), (597, 35787), (711, 30049), (1359, 15721), (1791, 11929)]