19771816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{145381}}^1$

素因数の和:145404

約数の個数: 16

約数和(自身を含む): 39253140

約数和(自身を除く): 19481324

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 145381, 290762, 581524, 1163048, 2471477, 4942954, 9885908, 19771816]

約数ペア:

[(1, 19771816), (2, 9885908), (4, 4942954), (8, 2471477), (17, 1163048), (34, 581524), (68, 290762), (136, 145381)]