21587824

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79367}}^1$

素因数の和:79392

約数の個数: 20

約数和(自身を含む): 44287344

約数和(自身を除く): 22699520

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79367, 158734, 317468, 634936, 1269872, 1349239, 2698478, 5396956, 10793912, 21587824]

約数ペア:

[(1, 21587824), (2, 10793912), (4, 5396956), (8, 2698478), (16, 1349239), (17, 1269872), (34, 634936), (68, 317468), (136, 158734), (272, 79367)]