21221530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192923}}^1$

素因数の和:192941

約数の個数: 16

約数和(自身を含む): 41671584

約数和(自身を除く): 20450054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192923, 385846, 964615, 1929230, 2122153, 4244306, 10610765, 21221530]

約数ペア:

[(1, 21221530), (2, 10610765), (5, 4244306), (10, 2122153), (11, 1929230), (22, 964615), (55, 385846), (110, 192923)]