643471138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{17957}}^1$

素因数の和:18042

約数の個数: 32

約数和(自身を含む): 1086099840

約数和(自身を除く): 442628702

約数列:

[1, 2, 19, 23, 38, 41, 46, 82, 437, 779, 874, 943, 1558, 1886, 17917, 17957, 35834, 35914, 341183, 413011, 682366, 736237, 826022, 1472474, 7847209, 13988503, 15694418, 16933451, 27977006, 33866902, 321735569, 643471138]

約数ペア:

[(1, 643471138), (2, 321735569), (19, 33866902), (23, 27977006), (38, 16933451), (41, 15694418), (46, 13988503), (82, 7847209), (437, 1472474), (779, 826022), (874, 736237), (943, 682366), (1558, 413011), (1886, 341183), (17917, 35914), (17957, 35834)]