21788144

素因数分解:

$2^4\times 7^2\times {\mathrm{27791}}^1$

素因数の和:27813

約数の個数: 30

約数和(自身を含む): 49108464

約数和(自身を除く): 27320320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27791, 55582, 111164, 194537, 222328, 389074, 444656, 778148, 1361759, 1556296, 2723518, 3112592, 5447036, 10894072, 21788144]

約数ペア:

[(1, 21788144), (2, 10894072), (4, 5447036), (7, 3112592), (8, 2723518), (14, 1556296), (16, 1361759), (28, 778148), (49, 444656), (56, 389074), (98, 222328), (112, 194537), (196, 111164), (392, 55582), (784, 27791)]