21661936

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12653}}^1$

素因数の和:12768

約数の個数: 20

約数和(自身を含む): 42365592

約数和(自身を除く): 20703656

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12653, 25306, 50612, 101224, 202448, 1353871, 2707742, 5415484, 10830968, 21661936]

約数ペア:

[(1, 21661936), (2, 10830968), (4, 5415484), (8, 2707742), (16, 1353871), (107, 202448), (214, 101224), (428, 50612), (856, 25306), (1712, 12653)]