21155624

素因数分解:

$2^3\times 7^1\times {\mathrm{377779}}^1$

素因数の和:377792

約数の個数: 16

約数和(自身を含む): 45333600

約数和(自身を除く): 24177976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 377779, 755558, 1511116, 2644453, 3022232, 5288906, 10577812, 21155624]

約数ペア:

[(1, 21155624), (2, 10577812), (4, 5288906), (7, 3022232), (8, 2644453), (14, 1511116), (28, 755558), (56, 377779)]