221495512

素因数分解:

$2^3\times 7^1\times {\mathrm{3955277}}^1$

素因数の和:3955290

約数の個数: 16

約数和(自身を含む): 474633360

約数和(自身を除く): 253137848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 3955277, 7910554, 15821108, 27686939, 31642216, 55373878, 110747756, 221495512]

約数ペア:

[(1, 221495512), (2, 110747756), (4, 55373878), (7, 31642216), (8, 27686939), (14, 15821108), (28, 7910554), (56, 3955277)]