21288190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27647}}^1$

素因数の和:27672

約数の個数: 32

約数和(自身を含む): 47775744

約数和(自身を除く): 26487554

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27647, 55294, 138235, 193529, 276470, 304117, 387058, 608234, 967645, 1520585, 1935290, 2128819, 3041170, 4257638, 10644095, 21288190]

約数ペア:

[(1, 21288190), (2, 10644095), (5, 4257638), (7, 3041170), (10, 2128819), (11, 1935290), (14, 1520585), (22, 967645), (35, 608234), (55, 387058), (70, 304117), (77, 276470), (110, 193529), (154, 138235), (385, 55294), (770, 27647)]