257495986

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{22639}}^1$

素因数の和:22710

約数の個数: 24

約数和(自身を含む): 433601280

約数和(自身を除く): 176105294

約数列:

[1, 2, 11, 22, 47, 94, 121, 242, 517, 1034, 5687, 11374, 22639, 45278, 249029, 498058, 1064033, 2128066, 2739319, 5478638, 11704363, 23408726, 128747993, 257495986]

約数ペア:

[(1, 257495986), (2, 128747993), (11, 23408726), (22, 11704363), (47, 5478638), (94, 2739319), (121, 2128066), (242, 1064033), (517, 498058), (1034, 249029), (5687, 45278), (11374, 22639)]