21961604

素因数分解:

$2^2\times 7^3\times {\mathrm{16007}}^1$

素因数の和:16032

約数の個数: 24

約数和(自身を含む): 44822400

約数和(自身を除く): 22860796

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 16007, 32014, 64028, 112049, 224098, 448196, 784343, 1568686, 3137372, 5490401, 10980802, 21961604]

約数ペア:

[(1, 21961604), (2, 10980802), (4, 5490401), (7, 3137372), (14, 1568686), (28, 784343), (49, 448196), (98, 224098), (196, 112049), (343, 64028), (686, 32014), (1372, 16007)]