18458864

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{16249}}^1$

素因数の和:16328

約数の個数: 20

約数和(自身を含む): 36270000

約数和(自身を除く): 17811136

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 16249, 32498, 64996, 129992, 259984, 1153679, 2307358, 4614716, 9229432, 18458864]

約数ペア:

[(1, 18458864), (2, 9229432), (4, 4614716), (8, 2307358), (16, 1153679), (71, 259984), (142, 129992), (284, 64996), (568, 32498), (1136, 16249)]