21699344

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79777}}^1$

素因数の和:79802

約数の個数: 20

約数和(自身を含む): 44516124

約数和(自身を除く): 22816780

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79777, 159554, 319108, 638216, 1276432, 1356209, 2712418, 5424836, 10849672, 21699344]

約数ペア:

[(1, 21699344), (2, 10849672), (4, 5424836), (8, 2712418), (16, 1356209), (17, 1276432), (34, 638216), (68, 319108), (136, 159554), (272, 79777)]