19577421

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 30139200

約数和(自身を除く): 10561779

約数列:

[1, 3, 9, 17, 51, 153, 199, 597, 643, 1791, 1929, 3383, 5787, 10149, 10931, 30447, 32793, 98379, 127957, 383871, 1151613, 2175269, 6525807, 19577421]

約数ペア:

[(1, 19577421), (3, 6525807), (9, 2175269), (17, 1151613), (51, 383871), (153, 127957), (199, 98379), (597, 32793), (643, 30447), (1791, 10931), (1929, 10149), (3383, 5787)]