18856791

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3331}}^1$

素因数の和:3391

約数の個数: 24

約数和(自身を含む): 29628144

約数和(自身を除く): 10771353

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3331, 5661, 9993, 29979, 56627, 123247, 169881, 369741, 509643, 1109223, 2095199, 6285597, 18856791]

約数ペア:

[(1, 18856791), (3, 6285597), (9, 2095199), (17, 1109223), (37, 509643), (51, 369741), (111, 169881), (153, 123247), (333, 56627), (629, 29979), (1887, 9993), (3331, 5661)]