21991792

素因数分解:

$2^4\times {\mathrm{601}}^1\times {\mathrm{2287}}^1$

素因数の和:2896

約数の個数: 20

約数和(自身を含む): 42698656

約数和(自身を除く): 20706864

約数列:

[1, 2, 4, 8, 16, 601, 1202, 2287, 2404, 4574, 4808, 9148, 9616, 18296, 36592, 1374487, 2748974, 5497948, 10995896, 21991792]

約数ペア:

[(1, 21991792), (2, 10995896), (4, 5497948), (8, 2748974), (16, 1374487), (601, 36592), (1202, 18296), (2287, 9616), (2404, 9148), (4574, 4808)]