21155596

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68687}}^1$

素因数の和:68709

約数の個数: 24

約数和(自身を含む): 46158336

約数和(自身を除く): 25002740

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68687, 137374, 274748, 480809, 755557, 961618, 1511114, 1923236, 3022228, 5288899, 10577798, 21155596]

約数ペア:

[(1, 21155596), (2, 10577798), (4, 5288899), (7, 3022228), (11, 1923236), (14, 1511114), (22, 961618), (28, 755557), (44, 480809), (77, 274748), (154, 137374), (308, 68687)]