21247930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193163}}^1$

素因数の和:193181

約数の個数: 16

約数和(自身を含む): 41723424

約数和(自身を除く): 20475494

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193163, 386326, 965815, 1931630, 2124793, 4249586, 10623965, 21247930]

約数ペア:

[(1, 21247930), (2, 10623965), (5, 4249586), (10, 2124793), (11, 1931630), (22, 965815), (55, 386326), (110, 193163)]