21969616

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{7937}}^1$

素因数の和:8118

約数の個数: 20

約数和(自身を含む): 42817572

約数和(自身を除く): 20847956

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 7937, 15874, 31748, 63496, 126992, 1373101, 2746202, 5492404, 10984808, 21969616]

約数ペア:

[(1, 21969616), (2, 10984808), (4, 5492404), (8, 2746202), (16, 1373101), (173, 126992), (346, 63496), (692, 31748), (1384, 15874), (2768, 7937)]