18784696

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3769}}^1$

素因数の和:3871

約数の個数: 32

約数和(自身を含む): 40716000

約数和(自身を除く): 21931304

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 3769, 4984, 7538, 15076, 26383, 30152, 52766, 105532, 211064, 335441, 670882, 1341764, 2348087, 2683528, 4696174, 9392348, 18784696]

約数ペア:

[(1, 18784696), (2, 9392348), (4, 4696174), (7, 2683528), (8, 2348087), (14, 1341764), (28, 670882), (56, 335441), (89, 211064), (178, 105532), (356, 52766), (623, 30152), (712, 26383), (1246, 15076), (2492, 7538), (3769, 4984)]