18778288

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13187}}^1$

素因数の和:13284

約数の個数: 20

約数和(自身を含む): 36794520

約数和(自身を除く): 18016232

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13187, 26374, 52748, 105496, 210992, 1173643, 2347286, 4694572, 9389144, 18778288]

約数ペア:

[(1, 18778288), (2, 9389144), (4, 4694572), (8, 2347286), (16, 1173643), (89, 210992), (178, 105496), (356, 52748), (712, 26374), (1424, 13187)]